EP1503138A1 - Vorrichtung zur Befestigung einer Lichtquelle an einem Reflektor eines Fahrzeugscheinwerfers - Google Patents

Vorrichtung zur Befestigung einer Lichtquelle an einem Reflektor eines Fahrzeugscheinwerfers Download PDF

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Publication number
EP1503138A1
EP1503138A1 EP04291690A EP04291690A EP1503138A1 EP 1503138 A1 EP1503138 A1 EP 1503138A1 EP 04291690 A EP04291690 A EP 04291690A EP 04291690 A EP04291690 A EP 04291690A EP 1503138 A1 EP1503138 A1 EP 1503138A1
Authority
EP
European Patent Office
Prior art keywords
ring
reflector
bulb
light source
module
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.)
Withdrawn
Application number
EP04291690A
Other languages
English (en)
French (fr)
Inventor
Nicolas Louvet
Jean Bolis
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 EP1503138A1 publication Critical patent/EP1503138A1/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V25/00—Safety devices structurally associated with lighting devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • 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
    • F21S41/17—Discharge light sources
    • 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

Definitions

  • the invention relates to a projector device for a motor vehicle. More specifically, the invention relates to a device for fixing a source light on a reflector of the projector device.
  • the object of the invention is to provide a device for fixing a source light on an optical reflector adaptable to different types of sources luminaires incorporating a discharge bulb.
  • the invention also intended to allow interchangeability between different types of light sources.
  • the devices projectors, or headlights, vehicles automobiles may be equipped with two types of light sources.
  • a first light source used is equipped with a halogen bulb.
  • a second light source used is provided with a discharge bulb. This light source then also comprises a high voltage module, feeding the discharge bulb.
  • the invention relates to projectors whose source luminaire is equipped with a discharge bulb.
  • a discharge bulb a bulb that is equipped with a discharge bulb.
  • two types light sources are used.
  • light source we mean by following a set including a discharge bulb, a foot bulb and a high voltage module.
  • the first type of light source, D1 is provided with a bulb, fixed immovably to a high voltage module.
  • This module has a outer outline generally square.
  • a lamp holder allows centering the discharge bulb inside a reflector in which is disposed the bulb.
  • the thickness or bulk of the high voltage module partner is weak.
  • a user wants to change the discharge lamp of the light source D1, for example when it is failing, he is obliged to change and the bulb and the module high voltage.
  • the second type of light source, D2 is equipped with a light bulb having no associated electronics. That is, the high module voltage is not an integral part of the discharge lamp, but is attached to it at the time of introduction of the bulb in a reflector. When the bulb of the light source D2 becomes defective, the high voltage module, it remains usable. The congestion towards the rear of the high voltage module associated with the light source bulb D2 is more important than the module associated with the bulb of the source luminous D1.
  • a closed ring As a first step, the discharge bulb is fixed on the reflector via a ring which is bayonetically locked on the reflector. Then the high voltage module is fixed to the discharge lamp.
  • a fixing ring is not suitable for a light source D1 equipped with a discharge bulb. Indeed, the square outer contour of high voltage module of the light source D1 opposes its introduction into the fixing ring of the state of the art, or else, this ring would have a diameter too large to allow later the fixing the light source on the reflector.
  • the fixing device of the invention is provided with a device allowing electromagnetic continuity which does not increase the size of the projector device: Due to the generation of a high voltage by the module, the projector device is subject to many electromagnetic radiation. To avoid dispersion of the electromagnetic radiation inside the vehicle, a shielding the projector device. Indeed, the radiations electromagnetic fields can generate many disturbances in the electrical assembly of the vehicle. Several functions of a vehicle current automobile being managed by an electronic device, these Electromagnetic disturbances can have serious consequences. he is known, to remedy this problem, to recover all these waves and evacuate them by a mass. For this, continuity is allowed electric from the metal reflector, where are recovered all electromagnetic radiation, up to a mass, passing through a base of the metal lamp. The aim is to ensure contact between the reflector and the high voltage module.
  • the bulb foot is the back part of the discharge bulb by which it is attached to the module.
  • the fixing device of the invention holds the discharge bulb on the lamp holder at the foot bulb. This fixing device, because it follows a partial outline of the lamp holder and bulb holder, these two parts being similar in the two light sources, can fix a light source as well D1 provided that a light source D2.
  • the fastening device of the invention may consist of a single room.
  • the fixing device is then openable, for example along an axis pivoting. It is also possible to provide a fastening device provided several independent pieces that can be attached to each other.
  • the fixing device of the invention just keep the whole.
  • This fixing device is not dependent on a outer contour of the high voltage module.
  • the fixing device is brought, open, at the location of the fastening area, then closed around the lamp holder.
  • the electromagnetic continuity can be ensured by a metal part not increasing a final size of the lighthouse vehicle.
  • the metal part of the invention can follow an outline internal fixing device.
  • the metal part must be sufficiently flexible and elastic to stay in permanent contact with the high voltage module on the one hand and the reflector.
  • the metal part consists of an aggregate of metal wires.
  • the device of the invention allowing in particular the electromagnetic continuity, act optimally on both types of light sources, it may be necessary to modify an outline outside the high voltage module of the light source D2.
  • the invention also relates to a motor vehicle characterized in that it comprises at least one projector device of the invention.
  • the light source 1 comprises a bulb 2 to discharge, a bulb foot 4 and a high voltage module 3.
  • the bulb 2 is fixedly secured to the high voltage module 3 at the foot 4 bulb.
  • An optical reflector is provided with a hole 6 for the place of a base 33. By the hole 6 passes the bulb 2.
  • a body 7 of the bulb 2 is thus housed inside the reflector 5.
  • a lamp holder 8 for example of circular cylindrical shape, is part of integral part of the reflector 5. That is to say that the lamp holder 8 has one end integral with the reflector 5.
  • the module 3 has a square outline.
  • FIG. 5 shows a projector device 50 provided with a D2 light source
  • the D2 light source comprises a 51 discharge bulb.
  • An electric module 52 is attached to the bulb 51 to the place of a 53 foot bulb.
  • a reflector 54 is provided at the location of a base 55 of a through hole 64 passing the bulb 51.
  • a door lamp 56 is a separable part of the reflector 54.
  • the lamp holder 56 does not therefore not integral part of the reflector 54, but is fixed jointly to the reflector 54 at the time of mounting the projector device 50.
  • a projector device 1 provided with a light source of type D1 (FIG. 1), a reflector 5 provided with a door lamp 8 does not form an integral part of the reflector 5.
  • a projector device 50 provided with a source type D2 (figure 5) a lamp holder 54 forming an integral part reflector 50.
  • the lamp holder 8 or 56 (respectively Figure 1 or 5) is provided in a rear part, directed towards the module 3 or 52, of a protuberance 9 or 57.
  • the protuberance 9 or 57 is supported on an outgrowth 10 or 58 of the bulb 2 or 51.
  • the protrusion 10, 58 extends for example radial outwards, following all or part of a circumference of the foot 4, 53 bulb. It is also possible to plan several excrescences, distributed for example regularly over the entire circumference bulb foot 4 or 53.
  • An object of the invention is to fix the bulb 2 to the reflector 5 (FIG. 1) or the bulb 51 to the reflector 52 (FIG. 2) with the same device of fixation.
  • the discharge bulb 2 is centered with respect to the reflector 5.
  • the protuberance 9 of the lamp holder 8 can be provided with a notch, in which is housed the protrusion 10 of the foot 4. It is necessary to tightly hold the bulb 2 on the reflector 5 so that it does not move.
  • a device 11 of attachment is provided with an internal contour 12 which follows, or wife, at least partially an outer contour 13 of the lamp holder 8.
  • FIG. 2A shows a projector device 1 and a device 11 not attached to the headlamp 1.
  • FIG. 2B the fixing device 11 can now be seen door lamp 8 tight against bulb foot 4.
  • the fixing device 11 follows at the location of its internal contour 12 the outer contour 13 of the protuberance 9.
  • a distance d between a rear face 18 of the protrusion 10 directed to the module 3, and a front face 14 of the module 3 is constant.
  • a cross-section of the fixing device 11 has, for example, a shape general U.
  • a base 15 of the U carries two branches 16 and 17.
  • the first branch 17, located on the module 3 side, has a thickness substantially e equal to the distance d.
  • substantially equal is meant that the thickness e is at most equal to the distance d.
  • the thickness e of the first branch 17 is such that it can slip into the space d and thus be in tight contact on the one hand with the front face 14 of the module 3 and on the other hand with the rear face 18 of the protrusion 10.
  • front face 14 of the module 3 is meant facing towards the reflector 5.
  • rear face 18 the protuberance 10 is meant facing towards the module 3.
  • the device 11 fixing the invention thus makes it possible to maintain the bulb 2 in the reflector 5.
  • FIG. 3 shows a device 11 for fixing, according to a particular embodiment of the invention.
  • a ring 19 is formed in one piece.
  • the ring 19 is openable in a single point 20.
  • a articulation means 21 can separate or bring together two parts 22 and 23 of the ring 19 by allowing them a rotational movement with respect to a C axis.
  • the C axis is parallel to an optical axis of the projector device 1. This rotational movement makes it possible to open and / or close the ring 19.
  • articulation means 21 may for example be a pivot. In another embodiment, it can be provided that the articulation means 21 is equipped with a hinge.
  • the inner contour 12 of the ring 19 is for example provided with a 24.
  • the outer contour 13 of the protuberance 9 of the lamp holder 8 can be housed in the groove 24.
  • the branch 17 of the ring 19 is housed between the front face 14 of the module 3 and the rear face 18 of the protuberance 10.
  • the branch 16 of the ring 19, it is in support against a front face of the end 9.
  • the junction between the protrusion 10 and the protuberance 9 of the lamp holder is blocked on the one hand by the branch 17 and the front face 14 of the module 3, and on the other hand by the branch 16.
  • the ring 19 may furthermore be provided with a device 25, 28 of closing.
  • the part 22 of the ring 19 is provided with a tongue 25.
  • the tongue 25 is an extension of one end 26, opposed to the hinge means 22, part 22.
  • the tongue 25 is extends to Part 23. Part 23, it can be provided, on an outer face 27, a means 28 for holding the tongue 25.
  • the means 28 is provided with a lug.
  • the closure device can also be equipped with a hook-and-loop strap.
  • FIG. 4 shows another particular example of embodiment of the device 11 of the invention.
  • the fixing device 11 is formed by a ring 30 provided with two independent pieces 31 and 32.
  • the parts 31 and 32 are respectively in the shape of a semicircle.
  • a translational movement t makes it possible to bring one another closer to parts 31 and 32.
  • a translation movement t 'allows the opposite of the remove.
  • the two pieces 31 and 32 are brought closer to each other around the lamp holder 8, so as to reform the ring 30 and maintain the light source on the reflector.
  • a closure device 34, 35 for example by snap-fastening.
  • the ring 19, 30 is for example plastic.
  • An object of the invention is to allow interchangeability between a light source of type D1 equipped with a discharge bulb (figure 1) and a D2 light source with a discharge bulb (Figure 5).
  • the foot 53 of the bulb 51 has a general shape substantially identical to that of foot 4 of bulb 2. It is proposed to modify a outer contour 62 of the module 52 of the D2 type light source (FIG. 5). Indeed, a distance f between a front face 59 of the module 52 and a rear face 60 of the protrusion 57 is greater than the distance d for a light source type D1 ( Figure 2).
  • the fixing device 11 described above allows a good electrical contact of the reflector 54 to the connector 52, without there being as far as a modification of a thickness of the fixing device 11, it is necessary to modify the distance f between the faces 59 and 58.
  • the outer contour 62 of the module 52 is modified so as to have a contact area identical to the contour of module 3 of the light source of type D1. More generally, the outer contour 62 of the in order to reduce the distance f between the rear face 58 and the front face 59.
  • the front face 59 of the module 52 has been lengthened, and a new front panel 61 of the module 52 is at a distance d from the rear face 58 of the bulb foot 53.
  • the fixing device 11 of the invention can then serve indistinctly to the fixing of a discharge lamp of a light source type D1 or type D2 on a reflector.
  • the modification of the contour 62 of the module 52 can moreover allow to increase the surface 61 of contact with a device allowing electromagnetic continuity. Indeed, advantageously the invention provides a means for good electromagnetic continuity, not increasing the size of the projector device.
  • the fixing device 11 it is proposed to provide the fixing device 11 with a metal part (not shown).
  • This metal piece follows for example the inner contour 12 of the fixing device 11.
  • the metal part is a metal ring housed in the groove 24 of the ring 19, 30 forming the fixing device 11.
  • This piece metal is in contact on the one hand with the lamp holder 8 or 56 and the reflector 5 or 54 and secondly with the front face 14 or 61 of the module 3 or 52.
  • the modification of the outer contour 62 of the module 52 therefore allows to ensure good electromagnetic continuity by means of a room metal that does not increase the size of the projector device. This modification also allows for interchangeability between a light source of type D1 and a light source of type D2.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP04291690A 2003-07-31 2004-07-02 Vorrichtung zur Befestigung einer Lichtquelle an einem Reflektor eines Fahrzeugscheinwerfers Withdrawn EP1503138A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0309477 2003-07-31
FR0309477A FR2858391B1 (fr) 2003-07-31 2003-07-31 Dispositif de fixation d'une source lumineuse sur un reflecteur d'un dispositif projecteur de vehicule automobile

Publications (1)

Publication Number Publication Date
EP1503138A1 true EP1503138A1 (de) 2005-02-02

Family

ID=33523043

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04291690A Withdrawn EP1503138A1 (de) 2003-07-31 2004-07-02 Vorrichtung zur Befestigung einer Lichtquelle an einem Reflektor eines Fahrzeugscheinwerfers

Country Status (2)

Country Link
EP (1) EP1503138A1 (de)
FR (1) FR2858391B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007026262A1 (de) * 2007-06-05 2008-12-11 Hella Kgaa Hueck & Co. Leuchteinheit für Fahrzeuge
WO2010112289A1 (de) * 2009-03-30 2010-10-07 Osram Gesellschaft mit beschränkter Haftung Hochdruckentladungslampe

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19753605A1 (de) * 1997-12-03 1999-06-10 Bosch Gmbh Robert Scheinwerfer für Fahrzeuge
DE19815984A1 (de) * 1998-04-09 1999-10-14 Bosch Gmbh Robert Scheinwerfer für Fahrzeuge

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19753605A1 (de) * 1997-12-03 1999-06-10 Bosch Gmbh Robert Scheinwerfer für Fahrzeuge
DE19815984A1 (de) * 1998-04-09 1999-10-14 Bosch Gmbh Robert Scheinwerfer für Fahrzeuge

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007026262A1 (de) * 2007-06-05 2008-12-11 Hella Kgaa Hueck & Co. Leuchteinheit für Fahrzeuge
WO2010112289A1 (de) * 2009-03-30 2010-10-07 Osram Gesellschaft mit beschränkter Haftung Hochdruckentladungslampe
CN102379022A (zh) * 2009-03-30 2012-03-14 奥斯兰姆有限公司 高压放电灯
US8491177B2 (en) 2009-03-30 2013-07-23 Osram Gesellschaft Mit Beschrankter Haftung High-pressure discharge lamp
CN102379022B (zh) * 2009-03-30 2014-08-27 奥斯兰姆有限公司 高压放电灯

Also Published As

Publication number Publication date
FR2858391A1 (fr) 2005-02-04
FR2858391B1 (fr) 2005-09-23

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