EP1533563B1 - Vorrichtung und Verfahren zur Befestigung einer Lichtquelle an einem Teil eines Kfz-Scheinwerfers - Google Patents

Vorrichtung und Verfahren zur Befestigung einer Lichtquelle an einem Teil eines Kfz-Scheinwerfers Download PDF

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Publication number
EP1533563B1
EP1533563B1 EP04292699.8A EP04292699A EP1533563B1 EP 1533563 B1 EP1533563 B1 EP 1533563B1 EP 04292699 A EP04292699 A EP 04292699A EP 1533563 B1 EP1533563 B1 EP 1533563B1
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EP
European Patent Office
Prior art keywords
lamp
bulb
counterpart
tabs
ring
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.)
Not-in-force
Application number
EP04292699.8A
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English (en)
French (fr)
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EP1533563A1 (de
Inventor
Guillaume Tronquet
Daniel Josquin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Vision SAS
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Valeo Vision SAS
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Publication date
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Publication of EP1533563A1 publication Critical patent/EP1533563A1/de
Application granted granted Critical
Publication of EP1533563B1 publication Critical patent/EP1533563B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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

Definitions

  • the invention relates to a system for fixing a light source on a counterpart of a motor vehicle headlamp.
  • the invention relates to a fastening system for fixing different types of light sources incorporating a discharge lamp.
  • the invention has applications in the automotive field and, more specifically, in the field of light projection for motor vehicles. It finds, in particular, applications for fixing a light source with possibility of interchangeability between light sources of different types.
  • the light projection devices (or light projectors) for motor vehicles are provided with light sources which can be of different kinds.
  • the front headlamps of the vehicles are equipped with light sources which can be of two different kinds, namely: a first kind with a halogen bulb, and a second type with a discharge bulb.
  • the light source is also equipped with a high voltage module which provides the power supply of the discharge lamp.
  • each of these light sources includes a discharge bulb, a bulb foot and a high voltage module.
  • the high voltage module is immovably fixed in the case of a lamp D1 and, conversely, removably in the case of a lamp D2.
  • the high voltage module is an integral part of the lamp.
  • the high voltage module is not integrated in the lamp; it constitutes an independent piece, removably mounted on the lamp.
  • FIG. 1 An example of a lamp D1 is shown on the figure 1 .
  • This figure shows a light source 1 comprising a discharge bulb 2, a bulb base 4 and a high voltage module 3.
  • the bulb 2 is fixed integrally with the module 3 at the location of the bulb foot 4.
  • An optical reflector 5 is provided with a hole 6 for passing through a base 7. Through the orifice 6, passes the bulb 2.
  • a body 2a of the bulb 2 is housed inside the reflector 5.
  • the bulb foot 4 is located outside the reflector 5.
  • a lamp holder 8 for example of circular cylindrical shape, is an integral part of the reflector 5.
  • the lamp holder 8 and the reflector 5 together form a single piece called counterpart 9 of the projector.
  • the lamp holder 8 serves to support the discharge bulb 2. It also allows to center and orient the discharge lamp 2 inside the reflector 5.
  • the lamp holder 8 may also be a separable part of the reflector 5.
  • the lamp holder 8 is then not an integral part of the reflector; it is fixed integrally to the reflector at the time of mounting the projector.
  • the lamp holder 8 and the reflector form, in this case too, the counterpart of the projector.
  • the discharge lamp 2 is surmounted by a high voltage module 3, integral with said lamp.
  • This module 3 has a substantially square outer contour, a relatively small size compared to a lamp D2 and its module, which will be described later.
  • the fact that the module 3 is irremovable entails certain disadvantages. Indeed, when a user is eager to change the discharge bulb of a projector of his vehicle, for example because it is faulty, he is obliged to change the entire bulb and high voltage module. In addition, the change of this bulb and high voltage module assembly is relatively difficult because, firstly, of the difficulty of access to the lamp D1 and the operations to be performed to remove the faulty assembly and install the new assembly and because, on the other hand, risks due to the high voltage present in the module. The user is therefore obliged to change the whole by a professional, which entails, in addition to the cost of the whole, a labor cost.
  • FIG. 2 An example of a lamp D2 with its high voltage module is represented on the figure 2 .
  • This figure 2 shows a light source 11 comprising a discharge bulb 12.
  • a high voltage electrical module 13 is removably attached to the bulb 12 at the location of a bulb base 14.
  • a reflector 15 is provided with place of the base 17, of an orifice passage 16 passing through the bulb 12.
  • the body 12a of the bulb 12 is housed inside the reflector 15.
  • the bulb foot 14 is located outside the reflector 15.
  • the lamp D2 comprises a lamp holder 18, for example of circular cylindrical shape, which may be an integral part of the reflector 15, or be a separate piece, integral with the reflector 15.
  • the lamp holder 18 and the reflector 15 together form the counterpart 19 of the projector.
  • the bulb has no associated electronics, i.e. the high voltage module is independent of the bulb.
  • the high voltage module is not an integral part of the discharge lamp: it is attached to the bulb after the introduction of the bulb in the reflector. It is therefore possible, during the assembly and disassembly of the projector, to disconnect the high voltage module from the bulb.
  • This has a certain advantage over the lamp D1. Indeed, with a lamp D2, it is possible, when the bulb is defective, to change only the bulb and keep the high voltage module initial. However, changing a bulb in a D2 lamp is even more delicate than changing the bulb and module assembly for a D1 lamp.
  • the user in the difficult place of access that is a projector, the user must first remove the module, and remove the bulb; he must then change the bulb and put the module back on the bulb, with all the risks inherent to the high voltage in the module. The user is therefore obliged to change the bulb by a professional.
  • a closed ring With this closed ring, at first, the high voltage module is fixed to the discharge bulb, and the discharge bulb is housed in the reflector. The ring is then brought into the fixing zone. For this, we slide the high voltage module in the ring to the fixing area. The ring on the reflector is then blocked by a bayonet.
  • a fixing ring is not suitable for a light source D1. Indeed, the square outer contour of the high voltage module of the light source D1 opposes its introduction into the closed ring or, then, this ring would have a diameter too large to allow, subsequently, the fixation of the light source on the counterparty.
  • the object of the invention is precisely to solve the disadvantages of the techniques described above by making it possible to fix a bulb on a spotlight counterpart, with the same fastening system for a lamp D1 as for a lamp D2.
  • the invention proposes a system for fixing a light source with an adaptable discharge bulb for different types of light sources.
  • This system is particularly suitable for gas-discharge light sources, such as lamps D1 and D2, because it ensures electrical continuity and electromagnetic shielding to prevent leakage of electromagnetic fields to the interior of the vehicle.
  • the invention relates to a light projection device for a motor vehicle according to claim 1.
  • the invention also relates to a motor vehicle, characterized in that it comprises at least one preceding light projection device.
  • the lamps D1 and D2 have very different shapes from each other. They still have a common, standardized part.
  • This common part is the bulb foot.
  • the bulb foot is the rear part of the discharge bulb by which it is attached to the high voltage module.
  • This bulb foot is substantially cylindrical, of the same diameter for the lamps D1 and D2.
  • the height between the neck of the bulb foot and the base of the high voltage module may vary between a lamp D1 and a lamp D2. Indeed, in the case of a lamp D1, this height is normalized. On the other hand, in the case of a lamp D2, this height depends on the high voltage module used.
  • the invention therefore proposes to use this characteristic common to both lamps. More specifically, it proposes to fix a system for fixing a lamp D1 or a lamp D2 around this common part.
  • the fastening system of the invention is therefore intended to be positioned around the bulb base of a light source D1 or D2. This fastening system makes it possible to hold and lock the discharge bulb with the lamp holder, that is to say the upper part of the counterpart of the projector, at the location of the bulb base.
  • FIG. 3A shows the system in an unlocked position and the figure 3B shows the system in its locked position.
  • FIG. 3A there is shown the fastening system 20 mounted on the counterpart 19, in the case of a lamp D2 for which the high module
  • This fastening system 20 comprises a rigid ring 21 and a flexible ring 31.
  • the flexible ring 31 is electrically conductive. It is placed inside the rigid ring 21.
  • the rigid ring 21 is movable in rotation.
  • the flexible ring 31 is not rotatable relative to the counterpart 19.
  • it has a degree of freedom, which is a radial translation, relative to the counterpart of the projector. In other words, as will be seen later, the flexible ring 31 can move radially towards the bulb base, under the effect of a pressure exerted by the rigid ring 21.
  • the flexible ring 31 is made of a flexible and electrically conductive material, for example a metallic material. It thus ensures an electrical function, at the same time, by internal contact on the counterpart and by contact of the contact tabs on the high voltage module.
  • This flexible ring 31 has a relatively circular shape; more specifically, it has a circular shape when the fastening system is in the locked position; it is circular by segment, or sector, when the fastening system is in the unlocked position.
  • the flexible ring has a tangential spacing greater at one point than at another point, that is to say greater at the end of the segment than at the beginning of the segment. This can be done by shearing the ring at the end of the segment, which puts the end of the segment naturally behind the rest of the segment.
  • One or more of these different tabs can further ensure a pre-hold role of the lamp on the counterpart, before the locking of the lamp is achieved. This tab then allows the lamp is stable on the counterpart, in a position ready to be locked.
  • the contact tabs are thin and long so as to come into contact with an electrically conductive part of the lamp.
  • the holding tabs are wider than the contact tabs, so that any change of lamp position in the counterpart can be prevented when the system is in the locked position.
  • the positioning tab is thin and long so as to be inserted into a housing of the lamp.
  • Each tongue has a substantially vertical flank 34 and a substantially horizontal base 35.
  • the flank has a free end and a common end with one side of the base.
  • the side of the base opposite the flank is connected to a flange 36 which connects several tabs between them.
  • the tabs are divided into several sectors. There are as many sectors of tabs as there are tabs of maintenance.
  • Each sector, or segment therefore has a retaining tab and several contact tabs, the retaining tab being placed at the end of the sector.
  • One of the sectors may also include a positioning tab.
  • the flank of the contact tongues may have a more or less curved shape, forming at least one arc of a circle, so as to give flexibility to the tabs to allow better contact with the high voltage module.
  • the holding tongues comprise, in addition to a sidewall 34 and a base 35, a holding arm 37 located in the same plane as the base 35, perpendicular to the sidewall 34 and directed towards the bulb foot 14.
  • C is this holding arm 37 which serves to maintain the foot in the counterpart, when the fastening system is in its locked position. It is understood that with several holding tabs, for example three, distributed symmetrically on the flexible ring, that is to say around the bulb base, ensures a fixed positioning of the bulb foot to the inside the flexible ring and therefore the counterpart.
  • the positioning tongue comprises, in addition to a sidewall 34 and a base 35, a housing arm situated in the same plane as the base 35, perpendicular to the sidewall 34 and directed towards the bulb base 14.
  • This arm housing is intended to fit into a housing of the lamp to ensure a unique correct positioning of the bulb in the counterpart.
  • the holding and positioning tabs all have a sidewall 34.
  • This sidewall 34 allows these tabs to ensure, in addition to their respective role of holding and positioning, a role of electrical conduction and electromagnetic shielding as well as the contact tabs.
  • the flank of the holding tabs has approximately the same curved shape as the contact tabs.
  • these holding and positioning tongues may not include a flank; in this case, they ensure only their initial role, namely the maintenance and positioning of the bulb in the counterpart.
  • the flexible ring can be made by cutting and bending in a metal sheet whose type of metal and thickness are chosen according to the desired flexibility.
  • the tongues can also be folded with different shapes and sizes depending on their role. In particular, the contact tongues may have a curved shape ensuring better electrical contact with the lamp.
  • the flexible ring 31 which has just been described, is installed in a rigid ring 21.
  • the sectors of the flexible ring are placed side by side, so that the securing tongue of a sector is next to a contact tab from another sector.
  • the rigid ring 21 is made of a plastic or metal material. It has a circular shape, by segment. In other words, the rigid ring 21 is formed of several segments, for example three, integral with each other. Each segment forms an arc, connected to another segment by a setback. In particular, on the figure 3A , the rigid ring 21 comprises three segments 21a, 21b and 21c. The segment 21a (and respectively 21b and 21c) is separated from the segment 21b (and respectively 21c and 21a) by a recess 23a (and respectively 23b and 23c). These recesses have, moreover, the advantage of facilitating the gripping of the ring by the user to rotate it.
  • the rigid ring 21 has first lugs 22a, 22b (also called prominent parts) forming cams.
  • first lugs 22a, 22b also called prominent parts
  • the rigid ring has as many first lugs as the flexible ring has retaining tabs.
  • the rigid ring thus comprises three first lugs, only two being visible in the figure. These lugs are intended, in the locked position, to push the holding tabs towards the bulb base.
  • the rigid ring may comprise a second lug, not shown on the figure 3A , forming a cam. This second lug is intended, in the locked position, to put the positioning tab in a housing of the lamp to ensure proper positioning of said lamp.
  • the rigid ring is made so that the flexible ring is against the inner face of said ring and blocked, upwards, by the lugs of the ring.
  • the flexible ring can also be locked down by other lugs used to secure the entire fastening system to the counterpart.
  • the rigid ring 21 has the role of ensuring the locking and unlocking of the fixing system by a rotation about an axis XX 'of the system, that is to say by a rotation relative to the flexible ring and compared to the counterparty.
  • the rigid ring is movable in rotation while the flexible ring is not rotatable relative to the counterpart.
  • the rigid ring may comprise, on its inner face, a boss in hard points intended to prevent the ring from returning to position. free. This makes it possible to unlock but not to return to the free position.
  • the fastening system is in the unlocked position.
  • the rigid ring is therefore in the open position relative to the flexible ring.
  • the retaining tabs 32 of the flexible ring are each positioned near a recess of the rigid ring; the lugs 22 of the rigid ring are placed in front of contact tongues and do not press on any tongue.
  • the flexible ring is free from any contact or support with a lamp.
  • the flexible ring By rotating the rigid ring, for example at an angle of about 40 °, the flexible ring is supported by the lug at its most off-center, that is to say at the level of the retaining tab.
  • Each lug 22a, 22b then bears against a retaining tongue 32a, 32b, pushing this tongue towards the bulb foot 14.
  • the retaining tongue Under the effect of the pushing by the lug, the retaining tongue is found near the foot of bulb, even in support against the foot of bulb, which makes it possible to prevent the bulb from moving in the counterpart.
  • the figure 3B shows the fixing system of the invention in a locked position, that is to say after rotation of the rigid ring.
  • This figure shows that, in this locked position, the lugs 22c, 22a of the rigid ring 21 press on the retaining tabs 32c, 32a of the flexible ring 31.
  • the holding tabs are then pushed into the system, that is to say towards the bulb base 14. They can thus bear against the lamp and, in particular, the bulb foot.
  • the high voltage module can then be placed around the bulb foot.
  • the high voltage module is then in contact with all or part of the contact tongues 33, which creates an electrical contact between the high voltage module and these tabs.
  • the contact tabs make it possible to shield the electromagnetic radiation emitted between the high voltage module and the counterpart. This ensures electromagnetic shielding between the high voltage module and the counterpart.
  • the figure 4 represents the fixing system of the invention mounted around a light source D2, when the system is locked.
  • This Figure shows the counterpart 19 of the projector, with its reflector 15 and its lamp holder 18, on which is mounted the fastening system 20 of the invention and the lamp D2.
  • the contact tabs 33 of the fastening system 20 are in electrical contact with the high voltage module of the light source D2. More precisely, in the case of a lamp D2, the contact tongues are in contact with the connector of the lamp D2.
  • the retaining tongues 32 bear against the bulb foot.
  • the figure 5 represents the fixing system of the invention mounted around a light source D1, when the system is locked.
  • This figure 5 shows the counterpart 9 of the projector, with the reflector 5 and the lamp holder 8, on which is mounted the fixing system 20 of the invention and the lamp D1.
  • the contact tongues 33 of the fastening system 20 are in electrical contact with the lamp D1, by a metal part of the lamp located under the connector 3.
  • contact tabs are not present all around the circumference of the flexible ring, but only on parts.
  • the area on which a lug will be rotated may not include a tongue so as to make a flat surface between the initial position and the final position of the lug, that is to say between the position unlocked and the locked position of the lug.
  • the Figures 4 and 5 show that the space between the fixing system 20 and the high voltage module 3 of a lamp D1 is lower than that between the fixing system and the high voltage module of a lamp D2.
  • the module of a lamp D1 has a square shape whose base has dimensions greater than the diameter of the fastening system.
  • the base of the module of the lamp D2 has a diameter smaller than that of the fixing system.
  • the contact tabs therefore have different dimensions in the case of a lamp system D1 and a lamp system D2.
  • the contact tabs for lamp D2 are longer than the contact tongues for lamp D1, since they come into contact with the module itself.
  • the contact tabs for a lamp D1 come into contact with a part situated below the module, that is to say closer to the bulb foot; they are therefore shorter.
  • the curvature of the contact tongues may also vary depending on the lamp considered.
  • the fastening system of the invention is therefore identical for lamps D1 and for lamps D2, except for the flexible ring which may have different lengths of tongues. As will be understood later, this difference is not troublesome, in the sense that it does not interfere with the interchangeability of the lamps.
  • the fixing system is positioned and fixed according to the following method: firstly the fixing system is made by assembling the flexible ring, adapted to a lamp D1 or a lamp D2 , with the rigid ring, then inserting this system vertically on the upper part of the counterpart. The system is then fixed on this counterpart by conventional means, for example, in force, bayonet or snap.
  • the fixing system may comprise, in its part located below the flexible ring, lugs for fixing the fastening system on the counterpart of the projector.
  • the lamp In the case of a lamp D1, the lamp is positioned on the fastening system by placing the discharge bulb inside the counterpart, in a V-shaped housing of the counterpart.
  • the position of the lamp D1 in the fixing system is correct when the positioning tab is resting against the lamp D1, pushing said lamp at the bottom of the V-shaped housing.
  • the fixing system is placed in the locked position by gating, that is to say by a rotation of the rigid ring about the axis XX 'and therefore a rotation of the rigid ring relative to the flexible ring.
  • the discharge bulb is placed inside the counterpart, the bulb foot being positioned on the fixing system.
  • the position of the lamp D2 in the fastening system is correct when the lamp is in the V-shaped housing of the counterpart and the positioning tab bears against the D2 lamp, pushing it to the bottom of the V-shaped housing.
  • the fastening system is put in the locked position by gagging, that is to say by a rotation of the rigid ring about the axis XX 'and therefore a rotation of the rigid ring relative to the flexible ring.
  • the high voltage module can then be put in place on the bulb foot.
  • the positioning tab is a spring blade that pushes the lamp at the bottom of the V-shaped housing made in the counterpart.
  • the role of this positioning tab is to make up the games that can be between the lamp and the counterpart by pushing the lamp radially into the V housing arranged in the counterpart.
  • the positioning tab is placed radially opposite the V.
  • the rigid ring when placed in the locked position, has a lug which pushes the positioning tab towards the center of the system, pushing the lamp radially from so that it is wedged into the V-shaped housing of the counterpart.
  • the positioning tab can also be used as a polarizer, when mounting the lamp on the counterpart, that is to say, it offers a single position possible during assembly.
  • FIGS 6A and 6C sectional side views of the fastening system of the invention are shown in the case of a lamp D1 when the system is unlocked and locked, respectively.
  • the Figures 6B and 6D represent top views of the fastening system of the invention, in the case of a lamp D1, when the system is, respectively, unlocked and locked.
  • the Figures 6A and 6B show the position of the rigid ring 21 and the flexible ring 31 when the system is unlocked. In particular, they show the position of the first lugs 22a, 22b, 22c of the rigid ring relative to the retaining tabs 32a, 32b, 32c of the flexible ring. These figures also show the position of the second lug 28 relative to the positioning tongues 38 of the flexible ring 31.
  • the positioning tongue 38 In the unlocked position, the positioning tongue 38 is housed in a housing of the bulb foot, but it is angled in this accommodation. Locking the system allows this tab to exert a push radial on the lamp to push the lamp to the bottom of the V-shaped housing of the counterpart.
  • This V-shaped housing is represented on the Figure 6B by two flats 40 located radially opposite the housing 39 receiving the positioning tab 38.
  • Figures 6A and 6B also show the positioning of the contact tongues 33, between the tongues 32 holding. We can easily see the differences in size that can be between the different kinds of tabs.
  • FIGs 6C and 6D represent the fixing system in the case of a lamp D1, when the system is locked.
  • the first and the second lugs of the ring do not bear on any tongue.
  • the rigid ring is rotated about 40 ° with respect to the flexible ring, the first lugs 22 are placed in front of the holding tongues 32 and the second lug 28 in front of the positioning tab 38.
  • the placement of these pins can be done in an orderly manner, that is to say that the second lug 28 is placed before the first lugs 22.
  • This rotation of the rigid ring has the effect of pushing the tabs holding down to the bulb foot, making the flexible ring completely circular. This also has the effect of pushing the positioning tab at the bottom of its housing 39, allowing it to exert a pressure plating the lamp D1 in the housing V.
  • the rigid ring 21 thus acts as a cam on the flexible ring 31.
  • the Figures 7A and 7C are side views, in section, of the fixing system of the invention, in the case of a lamp D2, when the system is, respectively, unlocked and locked.
  • the Figures 7B and 7D are top views of the fastening system of the invention, in the case of a lamp D2, when the system is, respectively, unlocked and locked.
  • the Figures 7A and 7B show the position of the rigid ring 21 and the flexible ring when the system is unlocked. In particular, they show the position of the first lugs 22a, 22b, 22c of the rigid ring relative to the retaining tabs 32a, 32b, 32c of the flexible ring. These figures also show the position of the second lug 28 relative to the positioning tongues 38 of the flexible ring 31.
  • the positioning tab 38 In unlocked position, the positioning tab 38 is housed in a housing of the bulb base, but it is at an angle in this housing ..
  • the system lock allows this tab to exert a radial thrust on the lamp to push the lamp at the bottom of the V-shaped housing of the counterpart.
  • This V-shaped housing is represented on the Figure 7B by two flats 40 located radially opposite the housing 39 receiving the positioning tab 38.
  • Figures 7A and 7B also show the positioning of the contact tongues 33, between the tongues 32 holding. We can easily see the differences in size that can be between the different kinds of tabs.
  • the Figures 7C and 7D represent the fixing system in the case of a lamp D2, when the system is locked.
  • the first and the second lugs of the ring do not bear on any tongue.
  • the rigid ring is rotated about 40 ° with respect to the flexible ring, the first lugs 22 are placed in front of the holding tongues 32 and the second lug 28 in front of the positioning tab 38.
  • the placement of these pins can be done in an orderly manner, that is to say that the second lug 28 is placed before the first lugs 22.
  • This rotation of the rigid ring has the effect of pushing the tabs holding down to the bulb foot, making the flexible ring completely circular. This also has the effect of pushing the positioning tab at the bottom of its housing 39, allowing it to exert a pressure plating the lamp D2 in the housing V.
  • the flexible ring 31 ensures the mechanical strength and the positioning of a lamp D1 or D2 on the counterpart, as well as the electrical continuity and the electromagnetic shielding between the counterpart and the high voltage module . Before locking, it acts as a pre-hold of the lamp because the inner diameter of the circle on which the retaining tabs are distributed, in the unlocked position, is less than the outside diameter of the lamp base.
  • the projector is standard for a D1 lamp and for a D2 lamp. It can therefore be realized in large series, in production, and it is simply at the moment of the installation of the light source that one chooses, if need be, to take a flexible ring with large contact tongues, for a D2 lamp, or small contact tabs, for a lamp D1. It is thus possible to mount a lamp D1 or a lamp D2, according to the choice, according to the cost and the availability of one or the other of the lamps.

Claims (11)

  1. Lichtprojektionsvorrichtung für ein Kraftfahrzeug, die aufweist:
    - eine Lichtquelle (1, 11), die mit einer Entladungsglühlampe (2, 12), einem Hochspannungsmodul (3, 13) und einem Glühlampensockel (4, 14) versehen ist, der die Verbindung zwischen der Glühlampe und dem Hochspannungsmodul gewährleistet,
    - ein Gegenstück (9, 19), das einen Reflektor (5, 15) und einen Lampenträger (8, 18) aufweist, wobei der Lampenträger die Glühlampe vor dem Reflektor hält,
    - ein Befestigungssystem (20) der Lichtquelle auf dem Gegenstück, das sich zumindest zum Teil um den Lampenträger herum befindet, wobei das Befestigungssystem aufweist:
    - einen drehbeweglichen steifen Ring (21), und
    - einen elektrisch leitenden biegsamen Ring (31), der sich im Inneren des steifen Rings befindet und mit Zungen versehen ist, die mit der Lichtquelle in elektrischem und mechanischem Kontakt stehen,
    wobei die Projektionsvorrichtung dadurch gekennzeichnet ist, dass der biegsame Ring radial beweglich und nicht drehbeweglich ist, und
    der steife Ring (21) bezüglich des biegsamen Rings (31) drehbeweglich ist.
  2. Lichtprojektionsvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass mindestens eine der Zungen eine mechanische Haltezunge (32) ist.
  3. Lichtprojektionsvorrichtung nach einem der Ansprüche 1 bis 2, dadurch gekennzeichnet, dass mindestens eine der Zungen eine elektrische Kontaktzunge (33) ist.
  4. Lichtprojektionsvorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass mindestens eine der Zungen einer Positionierzunge (38) der Lichtquelle ist.
  5. Lichtprojektionsvorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass die Halte- und Positionierzungen radial beweglich sind, mit einer entriegelten Stellung und einer verriegelten Stellung.
  6. Lichtprojektionsvorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der steife Ring auf einer Innenseite mindestens einen ersten Vorsprung (22) aufweist, der die Haltezunge schieben und in einer verriegelten Stellung halten kann.
  7. Lichtprojektionsvorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass der steife Ring auf einer Innenseite mindestens einen zweiten Vorsprung (28) aufweist, der die Positionierzunge schieben und in einer verriegelten Stellung halten kann.
  8. Verfahren zur Befestigung einer Lichtquelle an einem Gegenstück einer Lichtprojektionsvorrichtung nach einem der Ansprüche 1 bis 7, das die folgenden Schritte aufweist:
    - Positionieren und Befestigen des Befestigungssystems (20) um ein Ende eines Lampenträgers des Gegenstücks (9, 19) herum, wobei das Befestigungssystem einen drehbeweglichen steifen Ring (21) und einen elektrisch leitenden biegsamen Ring (31) enthält, der sich im Inneren des steifen Rings befindet und mit Zungen versehen und radial beweglich und nicht drehbeweglich ist,
    - Einführen einer Entladungsglühlampe (2, 12) der Lichtquelle ins Innere des Gegenstücks, bis ein Glühlampensockel der Lichtquelle auf dem Befestigungssystem oder dem Gegenstück (9, 19) aufliegt,
    - Verriegeln des Befestigungssystems durch Drehen eines Teils des Systems.
  9. Befestigungsverfahren nach Anspruch 8, dadurch gekennzeichnet, dass das Verriegeln des Befestigungssystems darin besteht, den steifen Ring bezüglich des biegsamen Rings und des Gegenstücks einer Drehung zu unterziehen.
  10. Befestigungsverfahren nach Anspruch 8 oder 9, dadurch gekennzeichnet, dass die Befestigung des Befestigungssystems am Lampenträger unter Krafteinwirkung, durch Einrasten und Verriegeln erfolgt.
  11. Kraftfahrzeug, dadurch gekennzeichnet, dass es mindestens eine Lichtprojektionsvorrichtung nach einem der Ansprüche 1 bis 7 aufweist.
EP04292699.8A 2003-11-21 2004-11-15 Vorrichtung und Verfahren zur Befestigung einer Lichtquelle an einem Teil eines Kfz-Scheinwerfers Not-in-force EP1533563B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0313650 2003-11-21
FR0313650A FR2862744B1 (fr) 2003-11-21 2003-11-21 Systeme de fixation d'une source lumineuse sur une contrepartie d'un projecteur de vehicule automobile et procede de mise en oeuvre

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EP1533563A1 EP1533563A1 (de) 2005-05-25
EP1533563B1 true EP1533563B1 (de) 2018-04-25

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US (1) US7241042B2 (de)
EP (1) EP1533563B1 (de)
JP (1) JP4554339B2 (de)
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FR2880674B1 (fr) * 2005-01-07 2007-03-16 Valeo Vision Sa Systeme de fixation d'une lampe sur un porte lampe de projecteur pour vehicule automobile
US20060291216A1 (en) * 2005-06-14 2006-12-28 Blumel Daniel M Apparatus for reducing in size an igniter circuit and assembly
KR100726168B1 (ko) 2005-11-08 2007-06-13 현대자동차주식회사 차량의 벌브 홀더유닛
FR2895063A1 (fr) * 2005-12-20 2007-06-22 Valeo Vision Sa Porte lampe de projecteur equipe de griffes orientees tangentiellement par rapport a la paroi du porte lampe
US7646151B2 (en) * 2006-02-06 2010-01-12 General Electric Company Light source module
DE102007022028B4 (de) * 2007-05-11 2016-10-20 Automotive Lighting Reutlingen Gmbh Beleuchtungseinrichtung für ein Fahrzeug, insbesondere Kraftfahrzeugscheinwerfer
JP5368880B2 (ja) * 2009-05-29 2013-12-18 株式会社小糸製作所 車両用灯具
AT513724B1 (de) * 2012-12-10 2014-09-15 Zizala Lichtsysteme Gmbh Vorrichtung zum Festlegen einer Lampe

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EP0282119B1 (de) * 1987-03-06 1993-09-01 Koninklijke Philips Electronics N.V. Scheinwerfer-Einheit mit Steckvorrichtung
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Also Published As

Publication number Publication date
US7241042B2 (en) 2007-07-10
JP4554339B2 (ja) 2010-09-29
FR2862744B1 (fr) 2006-09-29
JP2005158738A (ja) 2005-06-16
US20050111230A1 (en) 2005-05-26
EP1533563A1 (de) 2005-05-25
FR2862744A1 (fr) 2005-05-27

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