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EP3222903B1 - Motor vehicle lighting device and associated assembly method - Google Patents

Motor vehicle lighting device and associated assembly method Download PDF

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Publication number
EP3222903B1
EP3222903B1 EP17157087.2A EP17157087A EP3222903B1 EP 3222903 B1 EP3222903 B1 EP 3222903B1 EP 17157087 A EP17157087 A EP 17157087A EP 3222903 B1 EP3222903 B1 EP 3222903B1
Authority
EP
European Patent Office
Prior art keywords
printed circuit
circuit board
support
axis
joining device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP17157087.2A
Other languages
German (de)
French (fr)
Other versions
EP3222903A1 (en
Inventor
Jean-Christophe Thimouy
Samuel Trottier
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
Original Assignee
Valeo Vision SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Valeo Vision SAS filed Critical Valeo Vision SAS
Publication of EP3222903A1 publication Critical patent/EP3222903A1/en
Application granted granted Critical
Publication of EP3222903B1 publication Critical patent/EP3222903B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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]
    • F21S41/151—Light emitting diodes [LED] arranged in one or more lines
    • 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
    • F21S41/19—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
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/19—Attachment of light sources or lamp holders
    • F21S41/198—Snap-fit attachments
    • 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
    • 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
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/14—Light emitting diodes [LED]
    • 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
    • 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
    • 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
    • F21V19/004—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources by deformation of parts or snap action mountings, e.g. using clips
    • 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
    • F21V19/02—Fastening of light sources or lamp holders with provision for adjustment, e.g. for focusing
    • 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
    • F21W2103/00—Exterior vehicle lighting devices for signalling purposes
    • 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
    • F21W2103/00—Exterior vehicle lighting devices for signalling purposes
    • F21W2103/20—Direction indicator lights
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the present invention relates to a motor vehicle lighting device, of the type comprising: a printed circuit, comprising one or more electronic components; and a support assembled or capable of being assembled to the printed circuit.
  • a projector comprising light-emitting diodes (LEDs) arranged on a printed circuit (PCB), itself assembled to a support, is known in particular from the documents OF 10 2012 219 007 A1 , EP 2 574 503 A1 and CN203784789 .
  • the assembly of the PCB with the support is delicate for reasons of ergonomics of the parts. Indeed, shocks during assembly must be avoided so as not to damage the LEDs, or more generally the electronic components of the PCB. For this reason, the assembly of the PCB with the support generally requires specific tools and a technically demanding process.
  • the object of the present invention is to simplify the assembly of the luminous device, in particular the assembly of the PCB with the support.
  • the present invention relates to a luminous device as described in claim 1.
  • the luminous device comprises one or more of the characteristics described in claims 2 to 8.
  • the invention further relates to a method of assembling a light device as described in claim 9.
  • the assembly method comprises one or more of the characteristics described in claims 10 and 11.
  • the figure 1 , 2 and 3 represent a light device 10 according to one embodiment of the invention.
  • the light device 10 comprises a printed circuit or PCB 12 and a support 14, assembled or capable of being assembled with each other.
  • the PCB 12 comprises a plate 16 of rigid substrate, on which is deposited an electrically conductive material, forming an electrical circuit.
  • the plate 16 is substantially planar and has a first 18 and a second 20 opposite faces.
  • the plate 16 has an essentially longitudinal shape, arranged along a first axis 22.
  • the plate 16 comprises a first 24 and a second 26 longitudinal edges, located on either side of the first axis 22.
  • PCB 12 also includes electronic components 28, attached to first face 18 of plate 16.
  • said components include in particular light sources 28 of the LED type, visible on the figure 2 and by transparency on the figure 1 .
  • the light device 10 comprises at least one light source fixed to the support 14 and/or to another element of the radiator type.
  • said light source is for example electrically connected to PCB 12 via a flexible printed circuit before or after assembly of PCB 12 with support 14.
  • the PCB 12 also includes assembly elements with the support 14. In the embodiment of the figures 1 to 3 , said assembly elements are formed by cutouts in the plate 16.
  • a first assembly element is formed by a through hole 30, close to a first end of the plate 16 along the axis 22.
  • the through hole 30 has a non-symmetrical shape along a plane parallel to the axis 22 and perpendicular to the first 18 and second 20 faces.
  • the through hole 30 has a half-moon shape, with a curved edge and a straight edge respectively arranged on the side of the first 24 and second 26 longitudinal edges of the plate 16.
  • a second assembly element is formed by a first cutout 32, made in the first longitudinal edge 24 of the plate 16.
  • the first cutout 32 is close to a second end 33 of the plate 16 along the axis 22.
  • a third assembly element is formed by a second cutout 34, made in the second longitudinal edge 26 of the plate 16.
  • the second cutout 34 is located between the through hole 30 and the first cutout 32 along the axis 22.
  • the support 14 is for example formed from one or more plastic materials.
  • the support 14 comprises for example an output optic 36, intended to form part of an exterior surface of a motor vehicle comprising the light device 10.
  • Support 14 also includes a contact part 37, adjacent to output optics 36. Said contact part 37 is intended to be in contact with PCB 12 when said PCB is assembled to support 14, as on the picture 3 .
  • housings 38 In said contact part 37 are formed housings 38, intended to be arranged opposite the LEDs 28 of the PCB 12. Between said housings 38 and the output optics 36, the support 14 optionally comprises optical devices and / or additional light guides (not shown), intended to transmit and diffuse light emitted by the LEDs 28 to the outside of the light device 10.
  • the support 14 also comprises structural elements 40, intended for the assembly of said support 14 with the motor vehicle. These structural elements, as well as any parts already assembled to the support 14, generate a spatial encumbrance when mounting the PCB 12 on the support 14.
  • the support 14 also comprises assembly elements with the PCB 12, so that in the assembled configuration ( Figure 3 ), the plate 16 is substantially disposed against the contact portion 37 along a plane (Y, Z), the first axis 22 being disposed along Y.
  • a first assembly element of the support 14 with the PCB 12 is formed by a pivot rod 42.
  • the pivot rod 42 is intended to be assembled to the through hole 30 of the PCB 12 and to cooperate with said through hole.
  • the pivot rod 42 has a substantially longitudinal shape, arranged along a second axis 44 parallel to X.
  • the pivot rod 42 forms a projection relative to the contact portion 37 of the support 14. Said projection is oriented rearward, either in the opposite direction to the exit optics 36.
  • a second, free end of said pivot rod 42 is formed by an insertion button 46.
  • the PCB 12 is in a nesting configuration of the through hole 30 with the insertion button 46, making it possible to thread the PCB 12 onto the pivot rod 42.
  • the plate 16 is substantially arranged perpendicular to the second axis 44.
  • the first face 18 of said plate 16 is oriented towards the contact part 37 of the support 14, ie forwards in the figures.
  • the first axis 22 forms an angle ⁇ ( Figure 3 ) with the position of said axis 22 in the assembled configuration.
  • the angle ⁇ is greater than or equal to 45°.
  • the angle ⁇ is substantially equal to 90°.
  • the first axis 22 is arranged along Z and the second end 33 of the plate 16 is oriented downwards.
  • a cross section of said insertion button 46 has a shape substantially complementary to that of the through hole 30 of the PCB 12, in said configuration. of interlocking.
  • the shape of the insertion button 46 is no longer complementary to that of the through-hole 30. The insertion button 46 then forms a stop preventing the PCB 12 from being separated from the pivot rod 42 by translation along the axis 44.
  • the insertion button 46 of the support 14 has a half-moon shape, symmetrical along a plane (X, Y).
  • the pivot rod 42 comprises a rotation portion 50.
  • An axial length of the rotation portion 50 allows the PCB 12 a play in translation along the axis 44, between the stops 45 and 46.
  • the transverse dimensions of the rotation portion 50 are smaller than those of the insertion button 46.
  • said PCB 12 is able to pivot around the second axis 44 parallel to X.
  • the shape and the dimensions of the through hole 30 and of the pivot rod 42 allow the PCB 12, threaded on the rotation portion 50, to pivot around at least one axis perpendicular to the second axis 44.
  • the PCB 12, threaded onto the rotation portion 50 can pivot around any axis included in a plane (Y, Z) passing through the rotation portion 50.
  • the PCB 12 threaded onto the rotation portion 50, can pivot perpendicular to X, so as to move the second end 33 of the plate 16 backwards.
  • the shape of the first assembly elements allows the rotational movements of the PCB 12, around X and perpendicular to X, to take place simultaneously or separately.
  • the amplitude of rotation of PCB 12 around an axis perpendicular to X depends on an angular position of said PCB 12 with respect to X.
  • the PCB 12 is shown in an intermediate assembly configuration, the first axis 22 being arranged in the same plane (X, Y) as in the assembled configuration of the picture 3 .
  • the first pin 22 is capable of forming a maximum angle ⁇ with the position of said pin 22 in the assembled configuration.
  • the maximum angle ⁇ corresponds to a maximum clearance towards the rear of the second end 33 of the plate 16, relative to the contact part 37.
  • the maximum angle ⁇ is between 5° and 25°, more preferably equal to about 20°.
  • a second device for assembling the support 14 with the PCB 12 is formed by a notch 54, able to be assembled to the first cutout 32 of said PCB 12.
  • the notch 54 extends substantially along Y and is made in a tab 56 connected to the contact part 37 of the support 14.
  • the tab 56 is arranged substantially along X and oriented rearward.
  • the notch 54 is delimited on the one hand by an abutment 58, oriented towards the contact part 37, and on the other hand by a bead 60 forming a free end of the cleat 56.
  • the notch 54 is provided on an upper part of the cleat 56.
  • the first cutout 32 of the PCB 12 is inserted into the notch 54.
  • the plate 16 is thus locked in rotation around the second axis 44, in the direction which would tend to bring the second end 33 of said plate 16 downwards.
  • a third device for assembling the support 14 with the PCB 12 makes it possible to block the plate 16 in the opposite direction of rotation, by cooperating with the second cutout 34 of said PCB 12.
  • Said third assembly device is formed by a tongue 62, in relief along X with respect to the contact part 37 of the support 14, and oriented towards the rear.
  • the tongue 62 notably comprises a free end 64 along X.
  • a lower part of said tongue 62 comprises a cavity 66, disposed away from the free end 64.
  • Said cavity 66 has a shape complementary to that of the second cutout 34, so as to block the plate 16 in rotation and in translation along the second axis 44.
  • the tongue 62 is flexible and able to deform elastically by torsion around an axis parallel to Y; moreover, the cavity 66 passes through along Z.
  • the tongue 62 is fixed to the contact part 37 at the end of the assembly process of the support 14 with the PCB 12.
  • the tongue 62 can be rigid and/or the cavity 66 can be non-through.
  • the particular shapes of the through hole 30 and of the insertion button 46 have a keying function, so that the LEDs 28 are necessarily oriented towards the contact part 37 of the support 14.
  • the PCB 12 is translated along the second axis 44 until it is blocked by the axial stop 45 of the pivot rod 42.
  • the through hole 30 is then arranged around the rotation portion 50 of said pivot rod 42.
  • a first rotational movement is then applied to the PCB 12 so as to move the second end 33 of the plate 16 backwards.
  • the first rotational movement takes place around an axis perpendicular to X.
  • a second rotational movement is applied to the PCB 12 around the second axis 44, so as to move the second end 33 of the plate 16 upwards.
  • the PCB 12 thus arrives at the intermediate configuration of assembly of the picture 2 .
  • the rearward travel angle ⁇ allows said second end 33 to pass away from the bead 60 while the second rotational movement continues. Plate 16 therefore does not come into abutment against cleat 56 during said second movement.
  • the second rotational movement around the axis 44 is continued until the first cutout 32 is located higher than the cleat 56 with respect to Z.
  • a third rotational movement is then applied to the PCB 12 so as to move the second end 33 of the plate 16 forwards.
  • the third rotational movement takes place around an axis perpendicular to X.
  • the plate 16 is thus folded towards the contact part 37 of the support 14, inversely to the first rotational movement.
  • the third rotational movement is continued until the first axis 22 is in the same plane (Y, Z) as in the assembled configuration of the picture 3 .
  • the first cutout 32 of the PCB 12 is then located above the notch 54 of the tab 56.
  • a fourth rotational movement is then applied to the PCB 12 around the second axis 44, so as to move the second end 33 of the plate 16 downwards.
  • the first cutout 32 is thus lowered so as to fit into the notch 54.
  • the PCB 12 and the support 14 are then in the assembled configuration of the picture 3 , forming the light device 10.
  • the LEDs 28 of the PCB 12 are arranged opposite the housings 38 of the contact part 37 of the support 14, so as to diffuse light towards the output optics 36.
  • the insertion of the first cutout 32 in the notch 54 blocks the PCB 12 in rotation around the axis 44, with respect to the support 14, in a first direction of rotation. This insertion also blocks the PCB 12 in translation along X, as well as in rotation around Y and Z.
  • the rotation portion 50 in the through hole 30 blocks the PCB 12 in translation along Y with respect to the support 14.
  • the insertion of the second cutout 34 in the cavity 66 locks the PCB 12 in rotation around X, in a second direction of rotation.
  • Each of the second 32, 54 and third 34, 66 devices for assembling the PCB 12 and the support 14 therefore locks said PCB 12 with respect to said support 14 according to a different direction of rotation along X.
  • the insertion of the second cutout 34 in the cavity 66 also blocks the PCB 12 with respect to the support 14, in translation along X and/or along Y, and/or in rotation around Z.
  • the tongue 62 is fixed to the contact part 37 of the support 14 after the insertion of the first cutout 32 in the notch 54, so as to block the PCB 12 in the second direction of rotation.
  • the fixing of the tongue 62 to the support 14 is for example carried out by clipping or screwing.
  • the assembly method described above requires a relatively small amplitude of movement, in particular with regard to the rotations of the PCB 12.
  • the latter can thus be assembled to the support 14 even in the case where said support is placed in an environment already crowded.
  • the assembly can be carried out by hand by an operator, without any specific tool and without the PCB 12 being subjected to shocks that are harmful to the electronic components, in particular to the LEDs 28.
  • the PCB 12 in the assembled configuration is completely blocked in rotation and translation relative to the support 14, so as to remain in contact with said support in the event of vibrations of the vehicle equipped with the light device 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Description

La présente invention concerne un dispositif lumineux de véhicule automobile, du type comportant : un circuit imprimé, comprenant un ou plusieurs composants électroniques ; et un support assemblé ou apte à être assemblé au circuit imprimé.The present invention relates to a motor vehicle lighting device, of the type comprising: a printed circuit, comprising one or more electronic components; and a support assembled or capable of being assembled to the printed circuit.

Il est connu de prévoir, à l'arrière ou sur les côtés d'un véhicule automobile, des dispositifs lumineux aptes à remplir différentes fonctions d'éclairage et de signalisation. Un projecteur comprenant des diodes électro-luminescentes (LED) disposées sur un circuit imprimé (PCB), lui-même assemblé à un support, est notamment connu des documents DE 10 2012 219 007 A1 , EP 2 574 503 A1 et CN203784789 .It is known to provide, at the rear or on the sides of a motor vehicle, luminous devices capable of fulfilling various lighting and signaling functions. A projector comprising light-emitting diodes (LEDs) arranged on a printed circuit (PCB), itself assembled to a support, is known in particular from the documents OF 10 2012 219 007 A1 , EP 2 574 503 A1 and CN203784789 .

L'assemblage du PCB avec le support est délicat pour des raisons d'ergonomie des pièces. En effet, les chocs lors de l'assemblage doivent être évités pour ne pas détériorer les LED, ou plus généralement les composants électroniques du PCB. Pour cette raison, l'assemblage du PCB avec le support nécessite en général des outils spécifiques et un procédé techniquement contraignant.The assembly of the PCB with the support is delicate for reasons of ergonomics of the parts. Indeed, shocks during assembly must be avoided so as not to damage the LEDs, or more generally the electronic components of the PCB. For this reason, the assembly of the PCB with the support generally requires specific tools and a technically demanding process.

La présente invention a pour but de simplifier le montage du dispositif lumineux, en particulier l'assemblage du PCB avec le support.The object of the present invention is to simplify the assembly of the luminous device, in particular the assembly of the PCB with the support.

A cet effet, la présente invention se rapporte à un dispositif lumineux tel que décrit dans la revendication 1.To this end, the present invention relates to a luminous device as described in claim 1.

Suivant d'autres aspects avantageux de l'invention, le dispositif lumineux comporte l'une ou plusieurs des caractéristiques décrites dans les revendication 2 à 8.According to other advantageous aspects of the invention, the luminous device comprises one or more of the characteristics described in claims 2 to 8.

L'invention se rapporte en outre à un procédé d'assemblage d'un dispositif lumineux tel que décrit dans la revendication 9.The invention further relates to a method of assembling a light device as described in claim 9.

Suivant d'autres aspects avantageux de l'invention, le procédé d'assemblage comporte l'une ou plusieurs des caractéristiques décrites dans les revendications 10 et 11.According to other advantageous aspects of the invention, the assembly method comprises one or more of the characteristics described in claims 10 and 11.

L'invention sera mieux comprise à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple non limitatif et faite en se référant aux dessins sur lesquels :

  • la figure 1 est une vue en perspective d'un dispositif lumineux selon un mode de réalisation de l'invention, dans une configuration avant assemblage ;
  • la figure 2 est une vue de dessus du dispositif lumineux de la figure 1, dans une configuration en cours d'assemblage ; et
  • la figure 3 est une vue en perspective du dispositif lumineux des figures 1 et 2, dans une configuration assemblée.
The invention will be better understood on reading the following description, given solely by way of non-limiting example and made with reference to the drawings in which:
  • the figure 1 is a perspective view of a light device according to one embodiment of the invention, in a configuration before assembly;
  • the figure 2 is a top view of the light device of the figure 1 , in an assembly-in-progress configuration; and
  • the figure 3 is a perspective view of the lighting device of the figure 1 and 2 , in an assembled configuration.

Les figures 1, 2 et 3 représentent un dispositif lumineux 10 selon un mode de réalisation de l'invention.The figure 1 , 2 and 3 represent a light device 10 according to one embodiment of the invention.

Le dispositif lumineux 10 comporte un circuit imprimé ou PCB 12 et un support 14, assemblés ou aptes à être assemblés l'un avec l'autre.The light device 10 comprises a printed circuit or PCB 12 and a support 14, assembled or capable of being assembled with each other.

Le PCB 12 comporte une plaque 16 de substrat rigide, sur laquelle est déposé un matériau électriquement conducteur, formant un circuit électrique. La plaque 16 est sensiblement plane et comporte une première 18 et une seconde 20 faces opposées. Dans le mode de réalisation des figures 1 à 3, la plaque 16 a une forme essentiellement longitudinale, disposée selon un premier axe 22. En particulier, la plaque 16 comporte un premier 24 et un second 26 bords longitudinaux, situés de part et d'autre du premier axe 22.The PCB 12 comprises a plate 16 of rigid substrate, on which is deposited an electrically conductive material, forming an electrical circuit. The plate 16 is substantially planar and has a first 18 and a second 20 opposite faces. In the embodiment of figures 1 to 3 , the plate 16 has an essentially longitudinal shape, arranged along a first axis 22. In particular, the plate 16 comprises a first 24 and a second 26 longitudinal edges, located on either side of the first axis 22.

Le PCB 12 comporte également des composants électroniques 28, fixés à la première face 18 de la plaque 16.PCB 12 also includes electronic components 28, attached to first face 18 of plate 16.

Dans le mode de réalisation des figures 1 à 3, lesdits composants comprennent notamment des sources lumineuses 28 de type LED,, visibles sur la figure 2 et par transparence sur la figure 1.In the embodiment of figures 1 to 3 , said components include in particular light sources 28 of the LED type, visible on the figure 2 and by transparency on the figure 1 .

Selon une variante non représentée, le dispositif lumineux 10 comporte au moins une source lumineuse fixée au support 14 et/ou à un autre élément de type radiateur. Dans ce cas, ladite source lumineuse est par exemple reliée électriquement au PCB 12 par l'intermédiaire d'un circuit imprimé flexible avant ou après assemblage du PCB 12 avec le support 14.According to a variant not shown, the light device 10 comprises at least one light source fixed to the support 14 and/or to another element of the radiator type. In this case, said light source is for example electrically connected to PCB 12 via a flexible printed circuit before or after assembly of PCB 12 with support 14.

Le PCB 12 comporte également des éléments d'assemblage avec le support 14. Dans le mode de réalisation des figures 1 à 3, lesdits éléments d'assemblage sont formés par des découpes dans la plaque 16.The PCB 12 also includes assembly elements with the support 14. In the embodiment of the figures 1 to 3 , said assembly elements are formed by cutouts in the plate 16.

Un premier élément d'assemblage est formé par un trou traversant 30, proche d'une première extrémité de la plaque 16 selon l'axe 22. De préférence, le trou traversant 30 a une forme non symétrique selon un plan parallèle à l'axe 22 et perpendiculaire aux première 18 et seconde 20 faces. Dans le mode de réalisation des figures 1 à 3, le trou traversant 30 a une forme en demi-lune, avec un bord recourbé et un bord rectiligne respectivement disposés du côté du premier 24 et du second 26 bord longitudinaux de la plaque 16.A first assembly element is formed by a through hole 30, close to a first end of the plate 16 along the axis 22. Preferably, the through hole 30 has a non-symmetrical shape along a plane parallel to the axis 22 and perpendicular to the first 18 and second 20 faces. In the embodiment of figures 1 to 3 , the through hole 30 has a half-moon shape, with a curved edge and a straight edge respectively arranged on the side of the first 24 and second 26 longitudinal edges of the plate 16.

Un deuxième élément d'assemblage est formé par une première découpe 32, ménagée dans le premier bord longitudinal 24 de la plaque 16. La première découpe 32 est proche d'une seconde extrémité 33 de la plaque 16 selon l'axe 22.A second assembly element is formed by a first cutout 32, made in the first longitudinal edge 24 of the plate 16. The first cutout 32 is close to a second end 33 of the plate 16 along the axis 22.

Un troisième élément d'assemblage est formé par une deuxième découpe 34, ménagée dans le second bord longitudinal 26 de la plaque 16. La deuxième découpe 34 est située entre le trou traversant 30 et la première découpe 32 selon l'axe 22.A third assembly element is formed by a second cutout 34, made in the second longitudinal edge 26 of the plate 16. The second cutout 34 is located between the through hole 30 and the first cutout 32 along the axis 22.

Le support 14 est par exemple formé d'un ou de plusieurs matériaux plastiques. Le support 14 comporte par exemple une optique de sortie 36, destinée à faire partie d'une surface extérieure d'un véhicule automobile comprenant le dispositif lumineux 10.The support 14 is for example formed from one or more plastic materials. The support 14 comprises for example an output optic 36, intended to form part of an exterior surface of a motor vehicle comprising the light device 10.

Le support 14 comporte également une partie de contact 37, adjacente à l'optique de sortie 36. Ladite partie de contact 37 est destinée à être au contact du PCB 12 lorsque ledit PCB est assemblé au support 14, comme sur la figure 3. Dans ladite partie de contact 37 sont ménagés des logements 38, destinés à être disposés en vis-à-vis des LED 28 du PCB 12. Entre lesdits logements 38 et l'optique de sortie 36, le support 14 comporte éventuellement des dispositifs optiques et/ou des guides lumineux supplémentaires (non représentés), destinés à transmettre et diffuser une lumière émise par les LED 28 vers l'extérieur du dispositif lumineux 10.Support 14 also includes a contact part 37, adjacent to output optics 36. Said contact part 37 is intended to be in contact with PCB 12 when said PCB is assembled to support 14, as on the picture 3 . In said contact part 37 are formed housings 38, intended to be arranged opposite the LEDs 28 of the PCB 12. Between said housings 38 and the output optics 36, the support 14 optionally comprises optical devices and / or additional light guides (not shown), intended to transmit and diffuse light emitted by the LEDs 28 to the outside of the light device 10.

Le support 14 comporte également des éléments de structure 40, destinés à l'assemblage dudit support 14 avec le véhicule automobile. Ces éléments de structure, ainsi que d'éventuelles pièces déjà assemblées au support 14, génèrent un encombrement spatial lors du montage du PCB 12 sur le support 14.The support 14 also comprises structural elements 40, intended for the assembly of said support 14 with the motor vehicle. These structural elements, as well as any parts already assembled to the support 14, generate a spatial encumbrance when mounting the PCB 12 on the support 14.

Dans la suite de la description, on considère une base orthonormée (X, Y, Z) définie par rapport au support 14. Dans le dispositif lumineux 10 en configuration assemblée, comme sur la figure 3, une direction principale d'émission de la lumière des LED 28 est parallèle à X. La direction Z correspond à la verticale, le dispositif lumineux 10 étant assemblé à un véhicule automobile.In the rest of the description, we consider an orthonormal base (X, Y, Z) defined with respect to the support 14. In the luminous device 10 in the assembled configuration, as in the picture 3 , a main direction of emission of the light from the LEDs 28 is parallel to X. The direction Z corresponds to the vertical, the luminous device 10 being assembled in a motor vehicle.

Le support 14 comporte également des éléments d'assemblage avec le PCB 12, de sorte qu'en configuration assemblée (Figure 3), la plaque 16 soit sensiblement disposée contre la partie de contact 37 selon un plan (Y, Z), le premier axe 22 étant disposé selon Y.The support 14 also comprises assembly elements with the PCB 12, so that in the assembled configuration ( Figure 3 ), the plate 16 is substantially disposed against the contact portion 37 along a plane (Y, Z), the first axis 22 being disposed along Y.

Un premier élément d'assemblage du support 14 avec le PCB 12 est formé par une tige pivot 42. En particulier, la tige pivot 42 est destinée à être assemblée au trou traversant 30 du PCB 12 et à coopérer avec ledit trou traversant.A first assembly element of the support 14 with the PCB 12 is formed by a pivot rod 42. In particular, the pivot rod 42 is intended to be assembled to the through hole 30 of the PCB 12 and to cooperate with said through hole.

La tige pivot 42 a une forme sensiblement longitudinale, disposée selon un deuxième axe 44 parallèle à X. La tige pivot 42 forme une saillie par rapport à la partie de contact 37 du support 14. Ladite saillie est orientée vers l'arrière, soit dans le sens opposé à l'optique de sortie 36.The pivot rod 42 has a substantially longitudinal shape, arranged along a second axis 44 parallel to X. The pivot rod 42 forms a projection relative to the contact portion 37 of the support 14. Said projection is oriented rearward, either in the opposite direction to the exit optics 36.

Une première extrémité de la tige pivot 42, reliée à la partie de contact 37, est formée par une butée axiale 45. Une seconde extrémité, libre, de ladite tige pivot 42 est formée par un bouton d'introduction 46.A first end of the pivot rod 42, connected to the contact part 37, is formed by an axial stop 45. A second, free end of said pivot rod 42 is formed by an insertion button 46.

Sur la figure 1, le PCB 12 est dans une configuration d'emboîtement du trou traversant 30 avec le bouton d'introduction 46, permettant d'enfiler le PCB 12 sur la tige pivot 42. Dans cette configuration d'emboîtement, la plaque 16 est sensiblement disposée perpendiculaire au deuxième axe 44. La première face 18 de ladite plaque 16 est orientée vers la partie de contact 37 du support 14, soit vers l'avant sur les figures.On the figure 1 , the PCB 12 is in a nesting configuration of the through hole 30 with the insertion button 46, making it possible to thread the PCB 12 onto the pivot rod 42. In this nesting configuration, the plate 16 is substantially arranged perpendicular to the second axis 44. The first face 18 of said plate 16 is oriented towards the contact part 37 of the support 14, ie forwards in the figures.

Dans la configuration d'emboîtement, le premier axe 22 forme un angle α (Figure 3) avec la position dudit axe 22 en configuration assemblée. De préférence, l'angle α est supérieur ou égal à 45°.In the nesting configuration, the first axis 22 forms an angle α ( Figure 3 ) with the position of said axis 22 in the assembled configuration. Preferably, the angle α is greater than or equal to 45°.

Dans le mode de réalisation des figures 1 à 3, l'angle α est sensiblement égal à 90°. Dans la configuration d'emboîtement, le premier axe 22 est disposé selon Z et la seconde extrémité 33 de la plaque 16 est orientée vers le bas.In the embodiment of figures 1 to 3 , the angle α is substantially equal to 90°. In the interlocking configuration, the first axis 22 is arranged along Z and the second end 33 of the plate 16 is oriented downwards.

Une section transversale dudit bouton d'introduction 46 a une forme sensiblement complémentaire de celle du trou traversant 30 du PCB 12, dans ladite configuration d'emboîtement. En revanche, lorsque l'axe 22 de la plaque 16 est incliné par rapport à sa position verticale de la figure 1, la forme du bouton d'introduction 46 n'est plus complémentaire de celle du trou traversant 30. Le bouton d'introduction 46 forme alors une butée empêchant de séparer le PCB 12 de la tige pivot 42 par translation selon l'axe 44.A cross section of said insertion button 46 has a shape substantially complementary to that of the through hole 30 of the PCB 12, in said configuration. of interlocking. On the other hand, when the axis 22 of the plate 16 is inclined with respect to its vertical position of the figure 1 , the shape of the insertion button 46 is no longer complementary to that of the through-hole 30. The insertion button 46 then forms a stop preventing the PCB 12 from being separated from the pivot rod 42 by translation along the axis 44.

Dans le mode de réalisation des figures 1 à 3, le bouton d'introduction 46 du support 14 a une forme en demi-lune, symétrique selon un plan (X, Y).In the embodiment of figures 1 to 3 , the insertion button 46 of the support 14 has a half-moon shape, symmetrical along a plane (X, Y).

Entre la butée axiale 45 et le bouton d'introduction 46, la tige pivot 42 comporte une portion de rotation 50. Une longueur axiale de la portion de rotation 50 autorise au PCB 12 un jeu en translation selon l'axe 44, entre les butées 45 et 46.Between the axial stop 45 and the insertion button 46, the pivot rod 42 comprises a rotation portion 50. An axial length of the rotation portion 50 allows the PCB 12 a play in translation along the axis 44, between the stops 45 and 46.

Par ailleurs, les dimensions transversales de la portion de rotation 50 sont inférieures à celles du bouton d'introduction 46. En particulier, lorsque le trou traversant 30 du PCB 12 est enfilé sur ladite portion de rotation 50, ledit PCB 12 est apte à pivoter autour du deuxième axe 44 parallèle à X.Furthermore, the transverse dimensions of the rotation portion 50 are smaller than those of the insertion button 46. In particular, when the through hole 30 of the PCB 12 is threaded onto said rotation portion 50, said PCB 12 is able to pivot around the second axis 44 parallel to X.

En outre, la forme et les dimensions du trou traversant 30 et de la tige pivot 42 permettent au PCB 12, enfilé sur la portion de rotation 50, de pivoter autour d'au moins un axe perpendiculaire au deuxième axe 44. Dans le mode de réalisation des figures 1 à 3, le PCB 12, enfilé sur la portion de rotation 50, peut pivoter autour de tout axe compris dans un plan (Y, Z) passant par la portion de rotation 50.Furthermore, the shape and the dimensions of the through hole 30 and of the pivot rod 42 allow the PCB 12, threaded on the rotation portion 50, to pivot around at least one axis perpendicular to the second axis 44. In the mode of achievement of figures 1 to 3 , the PCB 12, threaded onto the rotation portion 50, can pivot around any axis included in a plane (Y, Z) passing through the rotation portion 50.

En particulier, le PCB 12, enfilé sur la portion de rotation 50, peut pivoter perpendiculairement à X, de sorte à déplacer vers l'arrière la seconde extrémité 33 de la plaque 16.In particular, the PCB 12, threaded onto the rotation portion 50, can pivot perpendicular to X, so as to move the second end 33 of the plate 16 backwards.

La forme des premiers éléments d'assemblage permet aux mouvements de rotation du PCB 12, autour de X et perpendiculairement à X, d'avoir lieu simultanément ou séparément. L'amplitude de rotation du PCB 12 autour d'un axe perpendiculaire à X dépend d'une position angulaire dudit PCB 12 par rapport à X.The shape of the first assembly elements allows the rotational movements of the PCB 12, around X and perpendicular to X, to take place simultaneously or separately. The amplitude of rotation of PCB 12 around an axis perpendicular to X depends on an angular position of said PCB 12 with respect to X.

Sur la figure 2, le PCB 12 est représenté dans une configuration intermédiaire d'assemblage, le premier axe 22 étant disposé dans le même plan (X, Y) que dans la configuration assemblée de la figure 3. Dans cette configuration intermédiaire d'assemblage, le premier axe 22 est apte à former un angle maximal β avec la position dudit axe 22 en configuration assemblée. L'angle maximal β correspond à un débattement maximal vers l'arrière de la seconde extrémité 33 de la plaque 16, par rapport à la partie de contact 37.On the figure 2 , the PCB 12 is shown in an intermediate assembly configuration, the first axis 22 being arranged in the same plane (X, Y) as in the assembled configuration of the picture 3 . In this intermediate assembly configuration, the first pin 22 is capable of forming a maximum angle β with the position of said pin 22 in the assembled configuration. The maximum angle β corresponds to a maximum clearance towards the rear of the second end 33 of the plate 16, relative to the contact part 37.

De préférence, l'angle maximal β est compris entre 5° et 25°, plus préférentiellement égal à environ 20°.Preferably, the maximum angle β is between 5° and 25°, more preferably equal to about 20°.

Un deuxième dispositif d'assemblage du support 14 avec le PCB 12 est formé par une encoche 54, apte à être assemblée à la première découpe 32 dudit PCB 12.A second device for assembling the support 14 with the PCB 12 is formed by a notch 54, able to be assembled to the first cutout 32 of said PCB 12.

L'encoche 54 s'étend sensiblement selon Y et est ménagée dans un taquet 56 relié à la partie de contact 37 du support 14. Le taquet 56 est sensiblement disposé selon X et orienté vers l'arrière.The notch 54 extends substantially along Y and is made in a tab 56 connected to the contact part 37 of the support 14. The tab 56 is arranged substantially along X and oriented rearward.

Selon X, l'encoche 54 est délimitée d'une part par une butée 58, orientée vers la partie de contact 37, et d'autre part par un bourrelet 60 formant une extrémité libre du taquet 56. Selon Z, l'encoche 54 est ménagée sur une partie supérieure du taquet 56.Along X, the notch 54 is delimited on the one hand by an abutment 58, oriented towards the contact part 37, and on the other hand by a bead 60 forming a free end of the cleat 56. Along Z, the notch 54 is provided on an upper part of the cleat 56.

Dans la configuration assemblée de la figure 3, la première découpe 32 du PCB 12 est insérée dans l'encoche 54. La plaque 16 est ainsi bloquée en rotation autour du deuxième axe 44, dans le sens qui tendrait à ramener vers le bas la seconde extrémité 33 de ladite plaque 16.In the assembled configuration of the picture 3 , the first cutout 32 of the PCB 12 is inserted into the notch 54. The plate 16 is thus locked in rotation around the second axis 44, in the direction which would tend to bring the second end 33 of said plate 16 downwards.

Un troisième dispositif d'assemblage du support 14 avec le PCB 12 permet de bloquer la plaque 16 dans le sens de rotation opposé, en coopérant avec la deuxième découpe 34 dudit PCB 12.A third device for assembling the support 14 with the PCB 12 makes it possible to block the plate 16 in the opposite direction of rotation, by cooperating with the second cutout 34 of said PCB 12.

Ledit troisième dispositif d'assemblage est formé par une languette 62, en relief selon X par rapport à la partie de contact 37 du support 14, et orientée vers l'arrière. La languette 62 comporte notamment une extrémité libre 64 selon X.Said third assembly device is formed by a tongue 62, in relief along X with respect to the contact part 37 of the support 14, and oriented towards the rear. The tongue 62 notably comprises a free end 64 along X.

Une partie inférieure de ladite languette 62 comporte une cavité 66, disposée à l'écart de l'extrémité libre 64. Ladite cavité 66 a une forme complémentaire de celle de la deuxième découpe 34, de sorte à bloquer la plaque 16 en rotation et en translation selon le deuxième axe 44.A lower part of said tongue 62 comprises a cavity 66, disposed away from the free end 64. Said cavity 66 has a shape complementary to that of the second cutout 34, so as to block the plate 16 in rotation and in translation along the second axis 44.

Dans le mode de réalisation des figures 1 à 3, la languette 62 est flexible et apte à se déformer élastiquement par torsion autour d'un axe parallèle à Y ; de plus, la cavité 66 est traversante selon Z.In the embodiment of figures 1 to 3 , the tongue 62 is flexible and able to deform elastically by torsion around an axis parallel to Y; moreover, the cavity 66 passes through along Z.

Selon une variante de réalisation non représentée, la languette 62 est fixée à la partie de contact 37 à la fin du procédé d'assemblage du support 14 avec le PCB 12. Selon cette variante, la languette 62 peut être rigide et/ou la cavité 66 peut être non traversante.According to a variant embodiment not shown, the tongue 62 is fixed to the contact part 37 at the end of the assembly process of the support 14 with the PCB 12. According to this variant, the tongue 62 can be rigid and/or the cavity 66 can be non-through.

Un procédé d'assemblage du dispositif lumineux 10 va maintenant être décrit. Par rapport au support 14, le PCB 12 est placé dans la configuration d'emboîtement représentée à la figure 1. Le trou traversant 30 de la plaque 16 est ensuite enfilé sur la tige pivot 42.A method of assembling the luminous device 10 will now be described. With respect to support 14, PCB 12 is placed in the nesting configuration shown in figure 1 . Through-hole 30 of plate 16 is then threaded over pivot rod 42.

Les formes particulières du trou traversant 30 et du bouton d'introduction 46 ont une fonction de détrompage, de sorte que les LED 28 sont nécessairement orientées vers la partie de contact 37 du support 14.The particular shapes of the through hole 30 and of the insertion button 46 have a keying function, so that the LEDs 28 are necessarily oriented towards the contact part 37 of the support 14.

Le PCB 12 est translaté selon le deuxième axe 44 jusqu'à être bloqué par la butée axiale 45 de la tige pivot 42. Le trou traversant 30 est alors disposé autour de la portion de rotation 50 de ladite tige pivot 42.The PCB 12 is translated along the second axis 44 until it is blocked by the axial stop 45 of the pivot rod 42. The through hole 30 is then arranged around the rotation portion 50 of said pivot rod 42.

Un premier mouvement de rotation est alors appliqué au PCB 12 de sorte à déplacer vers l'arrière la seconde extrémité 33 de la plaque 16. Le premier mouvement de rotation a lieu autour d'un axe perpendiculaire à X.A first rotational movement is then applied to the PCB 12 so as to move the second end 33 of the plate 16 backwards. The first rotational movement takes place around an axis perpendicular to X.

Simultanément ou suite audit premier mouvement, un deuxième mouvement de rotation est appliqué au PCB 12 autour du deuxième axe 44, de sorte à déplacer vers le haut la seconde extrémité 33 de la plaque 16. Le PCB 12 arrive ainsi à la configuration intermédiaire d'assemblage de la figure 2. L'angle β de débattement vers l'arrière permet à ladite seconde extrémité 33 de passer à l'écart du bourrelet 60 alors que le deuxième mouvement de rotation se poursuit. La plaque 16 ne vient donc pas en butée contre le taquet 56 durant ledit deuxième mouvement.Simultaneously or following said first movement, a second rotational movement is applied to the PCB 12 around the second axis 44, so as to move the second end 33 of the plate 16 upwards. The PCB 12 thus arrives at the intermediate configuration of assembly of the picture 2 . The rearward travel angle β allows said second end 33 to pass away from the bead 60 while the second rotational movement continues. Plate 16 therefore does not come into abutment against cleat 56 during said second movement.

Le deuxième mouvement de rotation autour de l'axe 44 est poursuivi jusqu'à ce que la première découpe 32 soit située plus haut que le taquet 56 par rapport à Z.The second rotational movement around the axis 44 is continued until the first cutout 32 is located higher than the cleat 56 with respect to Z.

Un troisième mouvement de rotation est alors appliqué au PCB 12 de sorte à déplacer vers l'avant la seconde extrémité 33 de la plaque 16. Le troisième mouvement de rotation a lieu autour d'un axe perpendiculaire à X. La plaque 16 est ainsi rabattue vers la partie de contact 37 du support 14, de manière inverse au premier mouvement de rotation.A third rotational movement is then applied to the PCB 12 so as to move the second end 33 of the plate 16 forwards. The third rotational movement takes place around an axis perpendicular to X. The plate 16 is thus folded towards the contact part 37 of the support 14, inversely to the first rotational movement.

Le troisième mouvement de rotation est poursuivi jusqu'à ce que le premier axe 22 se trouve dans un même plan (Y, Z) que dans la configuration assemblée de la figure 3. La première découpe 32 du PCB 12 est alors située au-dessus de l'encoche 54 du taquet 56.The third rotational movement is continued until the first axis 22 is in the same plane (Y, Z) as in the assembled configuration of the picture 3 . The first cutout 32 of the PCB 12 is then located above the notch 54 of the tab 56.

Un quatrième mouvement de rotation est alors appliqué au PCB 12 autour du deuxième axe 44, de sorte à déplacer vers le bas la seconde extrémité 33 de la plaque 16. La première découpe 32 est ainsi abaissée de sorte à s'insérer dans l'encoche 54.A fourth rotational movement is then applied to the PCB 12 around the second axis 44, so as to move the second end 33 of the plate 16 downwards. The first cutout 32 is thus lowered so as to fit into the notch 54.

Le PCB 12 et le support 14 sont alors dans la configuration assemblée de la figure 3, formant le dispositif lumineux 10. Les LED 28 du PCB 12 sont disposés en vis-à-vis des logements 38 de la partie de contact 37 du support 14, de sorte à diffuser de la lumière vers l'optique de sortie 36.The PCB 12 and the support 14 are then in the assembled configuration of the picture 3 , forming the light device 10. The LEDs 28 of the PCB 12 are arranged opposite the housings 38 of the contact part 37 of the support 14, so as to diffuse light towards the output optics 36.

L'insertion de la première découpe 32 dans l'encoche 54 bloque le PCB 12 en rotation autour de l'axe 44, par rapport au support 14, dans un premier sens de rotation. Cette insertion bloque également le PCB 12 en translation selon X, ainsi qu'en rotation autour de Y et de Z.The insertion of the first cutout 32 in the notch 54 blocks the PCB 12 in rotation around the axis 44, with respect to the support 14, in a first direction of rotation. This insertion also blocks the PCB 12 in translation along X, as well as in rotation around Y and Z.

De plus, en configuration assemblée, la portion de rotation 50 dans le trou traversant 30 bloque le PCB 12 en translation selon Y par rapport au support 14.In addition, in the assembled configuration, the rotation portion 50 in the through hole 30 blocks the PCB 12 in translation along Y with respect to the support 14.

Dans la configuration intermédiaire d'assemblage de la figure 2, durant le deuxième mouvement de rotation selon l'axe 44, le second bord longitudinal 26 de la plaque 16 arrive en butée contre l'extrémité libre 64 de la languette 62. Lorsque le deuxième mouvement de rotation se poursuit pour faire passer la première découpe 32 au-dessus du taquet 56, la pression de la plaque 16 déforme la languette 62 vers le haut. Ensuite, lorsque la première découpe 32 est insérée dans l'encoche 54, la deuxième découpe 34 dudit deuxième bord longitudinal 26 s'insère dans la cavité 66 de la languette 62, ladite languette reprenant sa forme initiale.In the intermediate assembly configuration of the figure 2 , during the second rotational movement along the axis 44, the second longitudinal edge 26 of the plate 16 comes into abutment against the free end 64 of the tongue 62. When the second rotational movement continues to pass the first cut 32 above the catch 56, the pressure of the plate 16 deforms the tongue 62 upwards. Then, when the first cutout 32 is inserted into the notch 54, the second cutout 34 of said second longitudinal edge 26 is inserted into the cavity 66 of the tongue 62, said tongue resuming its initial shape.

L'insertion de la deuxième découpe 34 dans la cavité 66 bloque le PCB 12 en rotation autour de X, dans un second sens de rotation. Chacun des deuxième 32, 54 et troisième 34, 66 dispositifs d'assemblage du PCB 12 et du support 14 bloque donc ledit PCB 12 par rapport audit support 14 selon un sens différent de rotation selon X.The insertion of the second cutout 34 in the cavity 66 locks the PCB 12 in rotation around X, in a second direction of rotation. Each of the second 32, 54 and third 34, 66 devices for assembling the PCB 12 and the support 14 therefore locks said PCB 12 with respect to said support 14 according to a different direction of rotation along X.

De manière optionnelle, l'insertion de la deuxième découpe 34 dans la cavité 66 bloque également le PCB 12 par rapport au support 14, en translation selon X et/ou selon Y, et/ou en rotation autour de Z.Optionally, the insertion of the second cutout 34 in the cavity 66 also blocks the PCB 12 with respect to the support 14, in translation along X and/or along Y, and/or in rotation around Z.

Selon la variante de réalisation précédemment évoquée, la languette 62 est fixée à la partie de contact 37 du support 14 après l'insertion de la première découpe 32 dans l'encoche 54, de sorte à bloquer le PCB 12 dans le second sens de rotation. La fixation de la languette 62 au support 14 est par exemple effectuée par clipsage ou vissage.According to the variant embodiment mentioned above, the tongue 62 is fixed to the contact part 37 of the support 14 after the insertion of the first cutout 32 in the notch 54, so as to block the PCB 12 in the second direction of rotation. . The fixing of the tongue 62 to the support 14 is for example carried out by clipping or screwing.

Le procédé d'assemblage décrit ci-dessus nécessite une amplitude de mouvement relativement faible, notamment en ce qui concerne les rotations du PCB 12. Ce dernier peut ainsi être assemblé au support 14 même dans le cas où ledit support est placé dans un environnement déjà encombré.The assembly method described above requires a relatively small amplitude of movement, in particular with regard to the rotations of the PCB 12. The latter can thus be assembled to the support 14 even in the case where said support is placed in an environment already crowded.

Par ailleurs, l'assemblage peut être effectué à la main par un opérateur, sans outil spécifique et sans que le PCB 12 ne subisse de chocs nuisibles aux composants électroniques, notamment aux LED 28.Furthermore, the assembly can be carried out by hand by an operator, without any specific tool and without the PCB 12 being subjected to shocks that are harmful to the electronic components, in particular to the LEDs 28.

Le PCB 12 en configuration assemblée est entièrement bloqué en rotation et translation par rapport au support 14, de manière à rester au contact dudit support en cas de vibrations du véhicule équipé du dispositif lumineux 10.The PCB 12 in the assembled configuration is completely blocked in rotation and translation relative to the support 14, so as to remain in contact with said support in the event of vibrations of the vehicle equipped with the light device 10.

Claims (11)

  1. Lighting device for an automotive vehicle, comprising:
    a printed circuit board (12), comprising one or more electronic components (28); and
    a support joined, or capable of being joined, to the printed circuit board,
    characterized in that said lighting device comprises
    a first joining device (30, 42, 50) for joining the printed circuit board to the support, said first joining device comprising a first element (30) borne by the printed circuit board and a second element (42, 50) borne by the support,
    said first joining device permitting said printed circuit board to rotate, with respect to said support, about an axis (44) and about an axis perpendicular to said axis (44); and
    a second joining device (32,54) for joining the printed circuit board to the support, located at a distance from the first joining device,
    said second joining device comprising:
    a third element (32) borne by the printed circuit board and located at a distance from the first element (30);
    and a fourth element (54) borne by the support and located at a distance from the second element (42, 50),
    said second joining device being capable of blocking the rotations of the printed circuit board with respect to the support about an axis perpendicular to axis (44) as well as about the axis (44) in one direction, in an assembled configuration of said printed circuit board and said support.
  2. Lighting device according to claim 1, wherein the first and second elements of the first joining device comprise, respectively, an opening (30) made in the printed circuit board; and a relief (42, 50) of the support, said relief being positioned along the axis (44); the printed circuit board being capable of pivoting about said relief inserted into said opening.
  3. Lighting device according to claim 1 or 2, wherein the third and fourth elements of the second joining device comprise, respectively: a cutout (32) of an edge of the printed circuit board; and a notch (54) of the support; said cutout being capable of being inserted into said notch.
  4. Lighting device according to any of the preceding claims, wherein:
    - the printed circuit board (12) is substantially longitudinal in form, comprising first and second (33) opposite ends;
    - the first element (30) of the first joining device is located close to the first end; and
    - the third element (32) of the second joining device is located close to the second end (33).
  5. Lighting device according to any of the preceding claims, wherein
    the printed circuit board and the support being in an angular position with respect to the axis (44) corresponding to the assembled configuration,
    the first joining device permits a rotation of the printed circuit board around an axis perpendicular to axis (44), by an angle (β) with respect to said assembled configuration,
    said angle (β) being between 5° and 25° and preferably equal to about 20°.
  6. Lighting device according to any of the preceding claims, wherein the respective shapes (30, 46) of the first and second elements of the first joining device are capable of dictating a spatial configuration of the printed circuit board (12) with respect to the support (14) when joining said first and second elements.
  7. Lighting device according to any of the preceding claims, wherein:
    - the second joining device (32, 54) is configured to block the rotation of the printed circuit board with respect to the support about the axis (44) in a first direction only; and
    - the lighting device additionally comprises a third joining device (34, 62, 66) between the printed circuit board and the support, configured to block the rotation of the printed circuit board with respect to the support about the axis in a second, opposite direction,
    - said third joining device comprising a fifth element (34) borne by the printed circuit board and a sixth element (62, 66) borne by the support.
  8. Lighting device according to any of the preceding claims, comprising one or more light sources (28), preferably of semiconductor-based type, fixed to a face (18) of the printed circuit board.
  9. Method of assembling a lighting device (10) according to any of the preceding claims, wherein:
    - the first (3)) and second (42, 50) elements of the first joining device are joined to one another in an initial configuration of the printed circuit board (12) with respect to the support (14); then
    - first, second and third rotational movements are successively applied to the printed circuit board with respect to the support, the second movement being effected about the axis, the first and third movements being effected about an axis perpendicular to said axis (44),
    - a trajectory of the third element (32) of the second joining device thus circumventing the fourth element (54) of said second joining device; then
    - a fourth rotational movement is applied to the printed circuit board with respect to the support, about the axis (44), in the opposite direction to the second movement, so as to join the third (32) and fourth (54) elements of the second joining device,
    - the printed circuit board and the support thus being in the assembled configuration.
  10. Method of assembling according to claim 9, a lighting device according to claim 7, wherein:
    - the application of the first and second rotational movements to the printed circuit board leads to an elastic deformation of the sixth element (62, 66) of the third joining device; and
    - the application of the third and fourth rotational movements to the printed circuit board subsequently leads to an opposite deformation of said sixth element, and to the joining of the fifth (34) and sixth (66) elements of the third joining device.
  11. Method of assembling according to claim 9, a lighting device according to claim 7, wherein the sixth element (62,66) of the third joining device is joined to the support (14) after the joining of the third (32) and fourth (54) elements of the second joining device.
EP17157087.2A 2016-02-23 2017-02-21 Motor vehicle lighting device and associated assembly method Active EP3222903B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1651460A FR3048069B1 (en) 2016-02-23 2016-02-23 LUMINOUS DEVICE OF A MOTOR VEHICLE AND ASSOCIATED ASSEMBLY METHOD

Publications (2)

Publication Number Publication Date
EP3222903A1 EP3222903A1 (en) 2017-09-27
EP3222903B1 true EP3222903B1 (en) 2022-05-04

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US (1) US10139087B2 (en)
EP (1) EP3222903B1 (en)
CN (1) CN107101155B (en)
FR (1) FR3048069B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3086734B1 (en) 2018-09-28 2022-06-24 Valeo Vision VEHICLE LIGHT MODULE COMPRISING A REFERENCE PIECE WITH A FLEXIBLE PART AND A RIGID PART
US10823356B1 (en) 2019-12-20 2020-11-03 Valeo Vision Device and method of focusing a light
FR3146108A1 (en) * 2023-02-24 2024-08-30 Psa Automobiles Sa OPTICAL BLOCK WITH ELECTRONIC BOARD(S) IMMOBILIZED WITHOUT SCREWS

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Publication number Priority date Publication date Assignee Title
WO2004103772A2 (en) * 2003-05-19 2004-12-02 Donnelly Corporation Mirror assembly for vehicle
FR2880674B1 (en) 2005-01-07 2007-03-16 Valeo Vision Sa SYSTEM FOR FIXING A LAMP ON A PROJECTOR LAMP DOOR FOR A MOTOR VEHICLE
DE102007050893B4 (en) * 2007-10-24 2011-06-01 Continental Automotive Gmbh Method for positioning and mounting a LED assembly and positioning body therefor
US7905639B2 (en) * 2008-05-28 2011-03-15 Osram Sylvania Inc. Side-loaded light emitting diode module for automotive rear combination lamps
JP5218115B2 (en) * 2009-02-03 2013-06-26 市光工業株式会社 Vehicle lighting
WO2012020013A1 (en) * 2010-08-10 2012-02-16 Osram Ag Printed circuit board having at least one semiconductor light source, support for the printed circuit board, system comprising the printed circuit board and the support, and method for mounting the printed circuit board on the support
FR2980420B1 (en) 2011-09-27 2016-07-15 Valeo Vision VEHICLE PROJECTOR MODULE WITH BAIONNETTE FIXATION, SUPPORT AND PROJECTOR CORRESPONDING
KR101271569B1 (en) * 2011-11-23 2013-06-11 권미숙 The lamp
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CN203784789U (en) 2014-04-17 2014-08-20 南宁燎旺车灯有限责任公司 Light emitting diode (LED) light source headlamp
KR20170033947A (en) * 2015-09-17 2017-03-28 삼성전자주식회사 Light source module and lighting device having the same

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Publication number Publication date
US20170241625A1 (en) 2017-08-24
EP3222903A1 (en) 2017-09-27
CN107101155A (en) 2017-08-29
CN107101155B (en) 2021-07-23
US10139087B2 (en) 2018-11-27
FR3048069A1 (en) 2017-08-25
FR3048069B1 (en) 2018-04-06

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