WO2020126823A1 - Procede d'assemblage d'un systeme optique de projecteur automobile et systeme optique de projecteur automobile associe - Google Patents
Procede d'assemblage d'un systeme optique de projecteur automobile et systeme optique de projecteur automobile associe Download PDFInfo
- Publication number
- WO2020126823A1 WO2020126823A1 PCT/EP2019/084903 EP2019084903W WO2020126823A1 WO 2020126823 A1 WO2020126823 A1 WO 2020126823A1 EP 2019084903 W EP2019084903 W EP 2019084903W WO 2020126823 A1 WO2020126823 A1 WO 2020126823A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light source
- reflector
- optical system
- positioning
- fixing
- Prior art date
Links
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
- F21S41/19—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
- 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
Definitions
- the present invention relates to a method of assembling an automotive headlamp optical system and to an associated automotive headlamp optical system.
- the performance of an optical system for the automobile depends in particular on the precision with which the different parts that compose it are assembled.
- document EP-A-3 321 570 describes a method for improving the precision of the positioning of a light source with respect to an optical system of an automotive lighting device.
- the present invention aims to remedy these drawbacks of the prior art.
- the present invention provides a method of assembling an automotive headlamp optical system, this system comprising a reflector and a part equipped with a light source, the method being remarkable in that it comprises stages of:
- an isostatism system is defined between the light source and the optical system, which makes it possible to limit the mechanical tolerances and to adapt to the different manufacturing and mounting processes and to the various configurations of re reflectors offered by the manufacturers of automobile projectors.
- the plurality of bearing surfaces comprises up to three bearing surfaces along a vertical axis, two bearing surfaces along a longitudinal axis and a bearing surface along a transverse axis , the vertical axes, Ion- gitudinal and transverse being orthogonal to each other.
- the method further comprises, posted
- a first position adjustment step where the part equipped with the light source is moved in its longitudinal direction.
- the method further includes, posted
- a fixing means is introduced into a fixing hole provided in the room equipped with the light source and in the reflector.
- the fixing means is a screw.
- FIG. 1 is a set of two schematic isometric perspective views of an automotive headlamp optical system according to the present invention, in a particular mode of re-absorption;
- FIG.2 is a schematic top view of the automotive headlamp optical system according to the present invention during assembly, showing in particular the bearing surfaces and the positioning pins provided on the reflector, in a particular embodiment;
- FIG. 1 is a schematic perspective view of the positioning step included in an assembly method according to the present invention, in a particular embodiment
- FIG. 1 is a schematic top view of an automotive headlamp optical system according to the present invention showing optional steps of position adjustment, in a particular embodiment.
- FIG. 1 is a flowchart illustrating steps of an assembly process in accordance with the present invention, in a particular embodiment.
- Figure 1 show the assembly of an optical system 10 of
- automotive headlamp object of the invention once assembled, from two different viewing angles, in a particular embodiment.
- a front left headlamp has been shown.
- the invention relates equally to any headlamp, whatever its location in the vehicle.
- the optical system 10 of the automotive headlamp comprises a reflector 12, a part 14 equipped with a light source and optionally, a part 16 for cooling.
- the reflector 12 is for example a plastic part coated with a thin layer of a metal such as aluminum.
- the light source is for example of the light-emitting diode or LED type (in English LED, "Light Emitting Diode”). It is fixed for example on a printed circuit board carrying other elements forming an electronic circuit designed to activate the light source according to commands from the vehicle. In order to avoid parasitic electrical contacts on electrical tracks of the circuit, the card is advantageously coated for example with a layer of an appropriate varnish.
- the optional cooling part 16 is provided with a plurality of fins used to dissipate the heat produced by the light source and by the associated electronic circuit.
- An optional first step of the method of assembling the optical system 10 of the automotive headlight is an identification step, during which identification information is read. relating to the reflector 12 and / or to the part 14 fitted with the light source and carried by them.
- this identification information can be any identification information.
- a barcode with at least one dimension.
- the barcode is one-dimensional, it is for example a code conventionally formed from a set of vertical bars and spaces of variable thickness, identifying the reflector 12, respectively the part 14 equipped with the light source.
- the bar code has two dimensions, it is for example a matrix or Datamatrix type code, formed of dots or squares juxtaposed according to a given pattern, also identifying the reflector 12, respectively the part 14 equipped with the source bright.
- the identification information is for example printed on adhesive labels affixed to the reflector 12 and / or on the part 14 equipped with the light source and can be read by means of an appropriate barcode reader.
- This identification step can be omitted.
- the method of assembling the optical system 10 of the automotive headlamp comprises a positioning step 52, during which the part 14 is fitted with the light source (possibly already assembled on the part 16 cooling when the latter is present) on several bearing surfaces 20 of the reflector 12, shown in FIG. 2.
- the aforementioned varnish layer of the printed circuit board of the part 14 is not present at the support surfaces 20.
- FIG. 2 illustrates a particular embodiment where the support surfaces 20 are three in number and advantageously distributed at the angles of an equilateral triangle (shown by dashes in the drawing), in order to optimize the isostatism in the vertical direction, that is to say orthogonal to the surface of the part 14 equipped with the light source.
- At least two positioning pins 22, 26 are provided on the reflector 12 and at least two corresponding holes 24 are provided on the part 14 equipped with the light source.
- Each of the positioning pins 22, 26 passes through one of the holes 24.
- At least two pins 22 and 26 of positioning are in contact with the edges of the corresponding holes 24 in the longitudinal direction X and it suffices that one of the positioning pins 22 is in contact with an edge of the corresponding hole 24 in the transverse direction Y of the vehicle, in a reference where the X axis designates the longitudinal direction of the vehicle oriented towards the rear, the Y axis designates its transverse direction oriented towards the right and the Z axis designates the vertical direction oriented upwards.
- the positioning pins 22 and 26 can be of specific shape and for example substantially cylindrical and the holes 24 can be circular.
- the specific shape of the positioning pins 22 and 26 makes it possible to achieve isostatism.
- One of the positioning pins 22, 26 may for example have three surfaces in contact with the edge of the hole 24, including one surface in contact with the edge of the hole 24 along the X axis and two surfaces in contact with the edge of the hole 24 along the Y axis, while another positioning pin may have a single contact surface with the edge of the hole 24, along the X axis.
- the surfaces of the pins 22 and 26 for positioning in contact with the edge of the holes 24 are advantageously made in the same cavity of the plastic injection mold as the optical surface of the mold.
- the reflector 12 has two positioning pins 22 and 26 and the part 14 fitted with the light source has two corresponding holes 24 into which the pins 22 and 26 are inserted.
- FIG. 3 illustrates the step 52 of positioning in this particular embodiment.
- steps 54 and 56 of position adjustment are carried out.
- a first step 54 of position adjustment is carried out, during which the part 14 equipped with the light source is moved in its longitudinal direction in order to adjust its position as precisely as possible, then it is maintained the part 14 equipped with the light source in this position.
- a machine or an operator grasps the cooling part 16 (previously assembled with the part 14 equipped with the light source) by a hole 40 provided in the cooling part 16.
- the hole 40 is of sufficient dimensions to allow the passage of a gripping blade of the machine or the passage of the operator's hand.
- the hole 40 may for example be of substantially rectangular shape. If no cooling part 16 is provided, the machine or the operator enters directly room 14 equipped with the light source.
- a second step 56 of position adjustment is performed.
- the part 14 equipped with the light source is pushed towards the reflector 12, in a direction orthogonal to its surface, as shown by an arrow F2 in FIG. 4.
- a fixing step 58 is carried out, during which the part is fixed between them 14 equipped with the light source and the reflector 12.
- a fixing means is introduced into a fixing hole 42 provided in the reflector 12, in the room 14 equipped with the light source and in the room 16 cooling when the latter, optional, is present.
- the fixing hole 42 is shown in FIGS. 2 and 4.
- the fixing means can for example be a screw or a rivet or a bolt.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR112021010403-8A BR112021010403A2 (pt) | 2018-12-21 | 2019-12-12 | Processo de montagem de um sistema óptico de farol projetor automotivo, e, sistema ótico de farol projetor automotivo |
CN201980084121.XA CN113195968A (zh) | 2018-12-21 | 2019-12-12 | 机动车辆前照灯光学系统的组装方法和相关联的机动车辆前照灯光学系统 |
EP19817320.5A EP3899357A1 (fr) | 2018-12-21 | 2019-12-12 | Procede d'assemblage d'un systeme optique de projecteur automobile et systeme optique de projecteur automobile associe |
JP2021535637A JP2022514374A (ja) | 2018-12-21 | 2019-12-12 | 自動車両用ヘッドランプ光学システムの組立方法、および対応する自動車両用ヘッドランプ光学システム |
KR1020217023255A KR20210103556A (ko) | 2018-12-21 | 2019-12-12 | 자동차의 헤드 램프 광학 시스템을 조립하는 방법 및 관련된 자동차의 헤드 램프 광학 시스템 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1873740 | 2018-12-21 | ||
FR1873740A FR3090821B1 (fr) | 2018-12-21 | 2018-12-21 | Procede d’assemblage d’un systeme optique de projecteur automobile et systeme optique de projecteur automobile associe |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2020126823A1 true WO2020126823A1 (fr) | 2020-06-25 |
Family
ID=66542429
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2019/084903 WO2020126823A1 (fr) | 2018-12-21 | 2019-12-12 | Procede d'assemblage d'un systeme optique de projecteur automobile et systeme optique de projecteur automobile associe |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP3899357A1 (fr) |
JP (1) | JP2022514374A (fr) |
KR (1) | KR20210103556A (fr) |
CN (1) | CN113195968A (fr) |
BR (1) | BR112021010403A2 (fr) |
FR (1) | FR3090821B1 (fr) |
WO (1) | WO2020126823A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022084337A1 (fr) * | 2020-10-20 | 2022-04-28 | OSRAM CONTINENTAL GmbH | Réflecteur pour une lampe de véhicule, procédé de fabrication de cette lampe |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2846078A1 (fr) * | 2013-09-05 | 2015-03-11 | Koito Manufacturing Co., Ltd. | Unité d'illumination pour un véhicule |
US20150070923A1 (en) * | 2013-09-10 | 2015-03-12 | Koito Manufacturing Co., Ltd. | Vehicular lamp |
EP3321570A1 (fr) | 2016-10-18 | 2018-05-16 | Automotive Lighting Reutlingen GmbH | Procédé d'agencement d'un support de circuit et dispositif d'éclairage de véhicule automobile pourvu de support de circuit selon le procédé |
WO2018161988A1 (fr) * | 2017-03-08 | 2018-09-13 | HELLA GmbH & Co. KGaA | Dispositif d'éclairage pour véhicules et procédé de montage |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016207509A (ja) * | 2015-04-23 | 2016-12-08 | スタンレー電気株式会社 | 車両用灯具 |
JP6791684B2 (ja) * | 2016-08-31 | 2020-11-25 | 株式会社小糸製作所 | 車輌用灯具 |
-
2018
- 2018-12-21 FR FR1873740A patent/FR3090821B1/fr active Active
-
2019
- 2019-12-12 WO PCT/EP2019/084903 patent/WO2020126823A1/fr unknown
- 2019-12-12 EP EP19817320.5A patent/EP3899357A1/fr active Pending
- 2019-12-12 JP JP2021535637A patent/JP2022514374A/ja active Pending
- 2019-12-12 KR KR1020217023255A patent/KR20210103556A/ko unknown
- 2019-12-12 CN CN201980084121.XA patent/CN113195968A/zh active Pending
- 2019-12-12 BR BR112021010403-8A patent/BR112021010403A2/pt unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2846078A1 (fr) * | 2013-09-05 | 2015-03-11 | Koito Manufacturing Co., Ltd. | Unité d'illumination pour un véhicule |
US20150070923A1 (en) * | 2013-09-10 | 2015-03-12 | Koito Manufacturing Co., Ltd. | Vehicular lamp |
EP3321570A1 (fr) | 2016-10-18 | 2018-05-16 | Automotive Lighting Reutlingen GmbH | Procédé d'agencement d'un support de circuit et dispositif d'éclairage de véhicule automobile pourvu de support de circuit selon le procédé |
WO2018161988A1 (fr) * | 2017-03-08 | 2018-09-13 | HELLA GmbH & Co. KGaA | Dispositif d'éclairage pour véhicules et procédé de montage |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022084337A1 (fr) * | 2020-10-20 | 2022-04-28 | OSRAM CONTINENTAL GmbH | Réflecteur pour une lampe de véhicule, procédé de fabrication de cette lampe |
Also Published As
Publication number | Publication date |
---|---|
BR112021010403A2 (pt) | 2021-08-24 |
FR3090821A1 (fr) | 2020-06-26 |
CN113195968A (zh) | 2021-07-30 |
JP2022514374A (ja) | 2022-02-10 |
KR20210103556A (ko) | 2021-08-23 |
EP3899357A1 (fr) | 2021-10-27 |
FR3090821B1 (fr) | 2021-07-30 |
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