EP2115349A1 - Headlight - Google Patents

Headlight

Info

Publication number
EP2115349A1
EP2115349A1 EP08717385A EP08717385A EP2115349A1 EP 2115349 A1 EP2115349 A1 EP 2115349A1 EP 08717385 A EP08717385 A EP 08717385A EP 08717385 A EP08717385 A EP 08717385A EP 2115349 A1 EP2115349 A1 EP 2115349A1
Authority
EP
European Patent Office
Prior art keywords
carrier
reflector
headlight according
lamp
light source
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.)
Granted
Application number
EP08717385A
Other languages
German (de)
French (fr)
Other versions
EP2115349B1 (en
Inventor
Peter Helbig
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.)
Osram GmbH
Original Assignee
Osram GmbH
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 Osram GmbH filed Critical Osram GmbH
Publication of EP2115349A1 publication Critical patent/EP2115349A1/en
Application granted granted Critical
Publication of EP2115349B1 publication Critical patent/EP2115349B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F21V19/00—Fastening 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/19—Attachment of light sources or lamp holders
    • F21S41/192—Details of lamp holders, terminals or connectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/321—Optical layout thereof the reflector being a surface of revolution or a planar surface, e.g. truncated
    • 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
    • F21S41/162—Incandescent light sources, e.g. filament or halogen lamps

Definitions

  • the invention relates to a headlamp, in particular a vehicle headlamp, with a reflector, which is associated with a light source, which is contacted by means of a contact carrier carrying electrical contacts.
  • a vehicle headlamp in which a reflector with a receptacle for a lamp, in ⁇ example, a halogen lamp is designed, which protrudes with her lamp vessel in the reflector, wherein the lamp cap with the electrical contact lugs of the lamp is arranged on the back outside of the reflector.
  • a contact housing is provided which is fastened via a carrier part on the rear side of the reflector.
  • three reflectors are arranged laterally nested in each other, in which case the carrier part is arranged with the respective ei ⁇ NEN reflector associated contact housings on the back of this reflector assembly.
  • the invention has for its object to provide a ge ⁇ ringem produced headlight.
  • a headlamp in particular a vehicle headlamp, in which a reflector is associated with a light source which is contacted by means of a carrier fixed to the reflector and carrying electrical contacts.
  • the carrier is also designed with a coupling for fixing the light source.
  • the carrier thus performs a dual function ⁇ because it carries both the housing-side contacts and the to be contacted so that the light source, so that the mechanical and electrical contacting of the Light source are placed in the carrier inside.
  • the light source can be aligned very precisely with respect to the reflector (referencing).
  • the electrical contacts are made dimensionally extremely exact to the light source side contacts. Another advantage is that by eliminating a coupling on the reflector this can be performed very easily and with high optical quality.
  • the coupling for fixing the light source is preferred ⁇ as a bayonet coupling with a reference surface for the defined system of the light source executed.
  • the support of the carrier at the back of the reflector is particularly stable when this is executed as a three-point bearing ⁇ leads. It is preferred to arrange the coupling centrally on the carrier, which is then carried out with three radially projecting support arms, one of which carries the contacts and which are fixed along their end portions on the reflector.
  • the pins can be asymmetrically arranged or formed, so that an accidental rotation of the carrier is excluded.
  • the pins are preferably designed with a radiallyteilge ⁇ set end portion for placing a Sich ceremoniessmit ⁇ means , wherein connected to a reflector with the reflector. which base part an annular support surface is created for the carrier.
  • the preparation of the carrier is particularly simple if it is made as an injection molded part, wherein a contact housing receiving contacts is integ ⁇ ration in the carrier.
  • FIG. 1 shows a three-dimensional illustration of a vehicle headlight rear side
  • Figure 2 is an exploded view of the vehicle headlight of Figure 1;
  • Figure 3 is a detail view of a reflector of the vehicle headlight of Figure 1 and
  • Figures 4 and 5 representations of a carrier of the vehicle ⁇ headlight of Figure 1.
  • He ⁇ invention will be explained below with reference to a vehicle ⁇ headlamp.
  • He ⁇ invention can also be used in other headlight system or lights.
  • the reflector / lamp assembly 1 shows a three-dimensional representation of a reflector / lamp assembly 1, which is used in a not dargestell ⁇ tes headlight housing, which in radiating direction is closed by a translucent front cover.
  • the reflector / lamp assembly 1 consists essentially of a reflector 2, on the back visible in Figure 1, a support 4 is fixed, which carries a light source, such as a Einticianl- halogen incandescent lamp or a xenon lamp and a contact ⁇ housing 8.
  • the contact housing 8 has arranged in recesses 10, 12 socket contacts, which are also connected via not shown connecting cable to the power supply.
  • the illustrated halogen incandescent lamp 6 is embodied with two radially projecting and superimposed contact lugs 14, 16 which, when the halogen incandescent lamp 6 is screwed in, swivel into the contact housing 8 from the open side of the recesses 10, 12 visible in FIG. 1, and then in the illustrated final rotational position of FIG halogen incandescent lamp 6 is in contact with the initially called ge ⁇ contacts.
  • the contact housing 8 is shown visible from the rear, so that the rear-side mouths of the recesses 10, 12 can be seen, in which said contacts are inserted and out of which extend the connection cables.
  • the contact housing 8 is approximately cuboidal, and has two contact slots 18, 20 on its facing the halogen incandescent lamp wall 6, 20 through which the contact lugs 14, 16 can be pivoted into their Endpo ⁇ position. Further details of the contact housing 8 are explained below with reference to FIGS. 4 and 5.
  • three Zap ⁇ fen 22, 24, 26 are formed on the Re ⁇ reflector rear side for attachment of the carrier 4, each having a radially ⁇ to reset end portion 28 and pressed against the reflector back wall base 30 have.
  • a Ra ⁇ dialschulter between the base portion 30 and the end portion 28 of the pin 26 forms a bearing surface 32 for the carrier 4.
  • the three pins 22, 24, 26 lie on a common pitch circle, the angular distance equal (120 °) or be selected differently can. In the latter case, a rotation is then guaranteed.
  • the reflector 2 can be made of thermosets by pressing and possibly vapor deposition with a reflector layer.
  • the reflector 2 according to the invention has a recess 34 in the middle, through which extends a part of the base and the lamp vessel of the lamp. In contrast to conventional solutions, however, no means for holding the lamp 6 are provided on this reflector 2.
  • This holder is integrated in the carrier 4 so that it can fulfill its double function mentioned above - electrical and mechanical contacting of the lamp 6.
  • Details of the carrier 4 are reference to Figures 4 and 5 erläu ⁇ tert wherein ben Figure 4 is an isometric view of o- and Figure 5 shows a bottom view of the carrier. 4
  • the carrier 4 has an approximately star-shaped basic body with an approximately annular central part 36, on which three radially projecting support arms 38, 40, 42 are formed. These are aligned with respect to the pins 22, 24, 26 and are at their end portions with Assembly openings 44 provided, whose clear width corresponds to the diameter of the end portions 28 of the pins 22, 24, 26, so that the carrier 4 can be placed on this.
  • the distribution of the pins 22, 24, 26 on the rear side of the reflector or its geometry can be selected such that the carrier 4 can only be placed in a certain position.
  • the contact housing 8 is attached to the support arm 40 and stands with its visible in Figure 2 rear over the peripheral edges of the support arm 40 addition, so that there is enough space for receiving the contacts and the contact lugs available.
  • the reflector 2 for white ⁇ send narrow side of the contact housing 8 closes with the side facing the reflector 2 major surface of the substrate 4 (see Fig. 5).
  • the contact housing is arranged practically at the ⁇ ser narrow side "standing" on the support arm 40th As shown in Figure 5, the supporting arms of the end portions at the side facing the reflector 2 major surfaces 38, 40 in the loading rich recesses 46, 48 are provided, The cutout is not provided along the bottom surfaces of the carrier 4 on the associated pegs 22 and 24.
  • the base part of the associated peg 26 is designed with a smaller axial length in order to provide a planar contact of the carrier 4 to allow the pins 22, 24, 26 and thus with respect to the reflector 2.
  • a rotation is also effected.
  • the fastening of the lamp 6 is carried out in a conventional manner via a bayonet closure, wherein the housing-side
  • the coupling is designed so that the base of the lamp 6 in their desired ⁇ position along a defined supporting surface 58 (see Figure 5) rests on the support 4, wherein the radial ⁇ positioning approximately edges thanks to the precise embodiment of the leadership of the bayonet cams 52, 54, 56 takes place. Since the position positioning of the lamp 6 with respect to the support member 4 is thus ensured in the locked state, the orientation of the lamp 6 with respect to the reflector 2 depends only on the exact attachment and adjustment of the support 4 on the reflector 2.
  • This position change can be made easily transfer through adaptation of the journal geometry, Stud position or Endab ⁇ sections 28 of the pin.
  • This can be done in the tool for the manufacture of the reflector 2, for example in that the pin length is adjusted by means of inserts on the press ⁇ tool by these pins are formed by inserts of the tool, which are respectively turned on or turned out to deviations in the axial direction to correct. Lateral (radial) deviations of the lamp position can be changed by lateral displacement of these inserts and thus the pin position.
  • the cost-intensive reworking of the tool ent ⁇ falls thus, since only a fine adjustment of the tool inserts is required.
  • the prefabricated carrier 4 When mounting the module, the prefabricated carrier 4 is placed on the end portions 28 of the pins 22, 24, 26 and then on the forth from the carrier 4 forth ⁇ end sections 28 each have a Sich ceremoniessmit ⁇ tel, for example, a lock washer 58 according to Figures 1 and 2 attached.
  • Such locking washers 58 are designed with spring tongues, which hold the carrier 4 non-positively and positively on the respective pin 22, 24, 26.
  • other securing means such as screws or the like can be used.
  • the pin and sleeve-like receptacles can be provided in the then formed on the carrier 4 pins or inserted into the carrier 4 securing means, for example. Fastening bolts are used.
  • the bayonet fitting is integrated in the carrier 4, in principle these elements of the bayonet closure could also be used as a metal component.
  • a headlamp in particular a driving ⁇ zeugscheinwerfer, in which a reflector 2, a support 4 is fixed, which carries a lamp 6, preferably a Ha ⁇ logenglühlampe and contacts for contacting the lamp 6.
  • a lamp 6 preferably a Ha ⁇ logenglühlampe and contacts for contacting the lamp 6.
  • the support 4 thus the functions contacting and mechanical support and the references for positioning the lamp 6 are integrated.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

The invention relates to a headlight, especially a vehicle headlight, in which a carrier (4) is fixed to a reflector (2), said carrier carrying a lamp (6), preferably a halogen filament lamp, and contacts for contacting the lamp (6). The contacting and mechanical mounting functions are built into the carrier (4), as are references for positioning the lamp.

Description

Be s ehre ibung Confession
Scheinwerferheadlights
Technisches GebietTechnical area
Die Erfindung betrifft einen Scheinwerfer, insbesondere einen Fahrzeugscheinwerfer, mit einem Reflektor, dem eine Lichtquelle zugeordnet ist, die mittels eines elektrische Kontakte tragenden Kontaktträgers kontaktiert ist.The invention relates to a headlamp, in particular a vehicle headlamp, with a reflector, which is associated with a light source, which is contacted by means of a contact carrier carrying electrical contacts.
Stand der TechnikState of the art
In der nachveröffentlichten DE 10 2005 045 765 der Anmelderin ist ein Fahrzeugscheinwerfer beschrieben, bei dem ein Reflektor mit einer Aufnahme für eine Lampe, bei¬ spielsweise eine Halogenlampe ausgeführt ist, die mit ih- rem Lampengefäß in den Reflektor hinein ragt, wobei der Lampensockel mit den elektrischen Kontaktfahnen der Lampe rückseitig außerhalb des Reflektors angeordnet ist. Zur elektrischen Kontaktierung der Lampe ist ein Kontaktgehäuse vorgesehen, das über ein Trägerteil an der Rücksei- te des Reflektors befestigt ist. Bei der konkreten Lösung sind drei Reflektoren seitlich ineinander geschachtelt angeordnet, wobei dann das Trägerteil mit den jeweils ei¬ nen Reflektor zugeordneten Kontaktgehäusen an der Rückseite dieser Reflektorbaugruppe angeordnet ist.In the subsequently published DE 10 2005 045 765 of the applicant, a vehicle headlamp is described in which a reflector with a receptacle for a lamp, in ¬ example, a halogen lamp is designed, which protrudes with her lamp vessel in the reflector, wherein the lamp cap with the electrical contact lugs of the lamp is arranged on the back outside of the reflector. For electrical contacting of the lamp, a contact housing is provided which is fastened via a carrier part on the rear side of the reflector. In the concrete solution, three reflectors are arranged laterally nested in each other, in which case the carrier part is arranged with the respective ei ¬ NEN reflector associated contact housings on the back of this reflector assembly.
Die Befestigung derartiger Trägerteile kann prinzipiell entweder durch Schrauben oder durch hinterrastende Bauelemente erfolgen. Lösungen mit Rastelementen setzen jedoch stets voraus, dass an dem Werkzeug zur Herstellung des Reflektors bzw. des Trägerteils Seitenschieber vorge- sehen werden, so dass die Werkzeugkonstruktion und Herstellung äußerst aufwendig ist. Ein weiterer Nachteil derartiger Schieberwerkzeuge besteht darin, dass diese relativ schnell verschleißen und somit einen hohen Wartungsaufwand erfordern. Ein weiterer Nachteil ist, dass die mit derartigen Schieberwerkzeugen hergestellten Bau- teile nachträglich entgratet werden müssen, da im Bereich der Schieber Grate oder leichte Versatzbereiche entstehen können. Bei der Verwendung einer Verschraubung ist es erforderlich, dass Gewinde in den Scheinwerfer geschnitten werden müssen. Durch dieses Gewindeschneiden kann es zu einer Staubbildung kommen, so dass die Reflektoroberflä¬ che verschmutzt werden kann.The attachment of such support members can be done in principle either by screws or by latching components. However, solutions with latching elements always assume that side slides are provided on the tool for producing the reflector or the carrier part, so that the tool design and production are extremely expensive. Another disadvantage Such slide tools is that they wear out relatively quickly and thus require a high maintenance. A further disadvantage is that the components produced with such slide tools must be subsequently deburred, since burrs or slight offset areas can occur in the area of the slides. When using a screw connection, it is necessary that threads in the headlight must be cut. Through this threading may occur dusting, so that the Reflektoroberflä ¬ che can be dirty.
Darstellung der ErfindungPresentation of the invention
Der Erfindung liegt die Aufgabe zugrunde, einen mit ge¬ ringem Aufwand herzustellenden Scheinwerfer zu schaffen.The invention has for its object to provide a ge ¬ ringem produced headlight.
Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Patentanspruches 1 gelöst. Besonders vorteilhafte Ausfüh¬ rungen der Erfindung sind in den abhängigen Patentansprüchen beschrieben.This object is achieved by the features of claim 1. Particularly advantageous exporting ¬ conclusions of the invention are described in the dependent claims.
Diese Aufgabe wird durch einen Scheinwerfer, insbesondere einen Fahrzeugscheinwerfer gelöst, bei dem einem Reflek- tor eine Lichtquelle zugeordnet ist, die mittels eines am Reflektor festgelegten und elektrische Kontakte tragenden Trägers kontaktiert ist. Der Träger ist darüber hinaus noch mit einer Kupplung zum Befestigen der Lichtquelle ausgeführt .This object is achieved by a headlamp, in particular a vehicle headlamp, in which a reflector is associated with a light source which is contacted by means of a carrier fixed to the reflector and carrying electrical contacts. The carrier is also designed with a coupling for fixing the light source.
Erfindungsgemäß übernimmt der Träger somit eine Doppel¬ funktion, da er sowohl die gehäuseseitigen Kontakte als auch die damit zu kontaktierende Lichtquelle trägt, so dass die mechanische und elektrische Kontaktierung der Lichtquelle in den Träger hinein gelegt sind. Durch ge¬ eignete Ausgestaltung dieses Trägers kann die Lichtquelle sehr präzise mit Bezug zum Reflektor ausgerichtet werden (Referenzierung) . Des Weiteren ist es vorteilhaft, dass mit der erfindungsgemäßen Lösung stets gewährleistet ist, dass die elektrischen Kontakte maßlich äußerst exakt zu den lichtquellenseitigen Kontakten ausgeführt sind. Ein weiterer Vorteil besteht darin, dass durch das Wegfallen einer Kupplung am Reflektor dieser äußerst einfach und mit hoher optischer Qualität ausgeführt werden kann.According to the invention the carrier thus performs a dual function ¬ because it carries both the housing-side contacts and the to be contacted so that the light source, so that the mechanical and electrical contacting of the Light source are placed in the carrier inside. By ge ¬ suitable design of this carrier, the light source can be aligned very precisely with respect to the reflector (referencing). Furthermore, it is advantageous that it is always ensured with the solution according to the invention that the electrical contacts are made dimensionally extremely exact to the light source side contacts. Another advantage is that by eliminating a coupling on the reflector this can be performed very easily and with high optical quality.
Die Kupplung zur Befestigung der Lichtquelle ist vorzugs¬ weise als Bajonettkupplung mit einer Referenzfläche zur definierten Anlage der Lichtquelle ausgeführt.The coupling for fixing the light source is preferred ¬ as a bayonet coupling with a reference surface for the defined system of the light source executed.
Die Abstützung des Trägers an der Reflektorrückseite ist besonders stabil, wenn diese als Dreipunktlagerung ausge¬ führt ist. Dabei ist es bevorzugt, die Kupplung zentral am Träger anzuordnen, der dann mit drei radial auskragenden Tragarmen ausgeführt ist, von denen einer die Kontakte trägt und die entlang ihrer Endabschnitte am Reflektor festgelegt werden.The support of the carrier at the back of the reflector is particularly stable when this is executed as a three-point bearing ¬ leads. It is preferred to arrange the coupling centrally on the carrier, which is then carried out with three radially projecting support arms, one of which carries the contacts and which are fixed along their end portions on the reflector.
Zur einfachen Befestigung des Reflektors kann dieser an seiner Rückseite mit Zapfen zum Aufsetzen des Trägers ausgeführt sein.For easy attachment of the reflector this can be performed on its back with pins for placing the carrier.
Zur Vermeidung von Montagefehlern können die Zapfen asym- metrisch angeordnet oder ausgebildet werden, so dass eine versehentliche Verdrehung des Trägers ausgeschlossen ist.To avoid assembly errors, the pins can be asymmetrically arranged or formed, so that an accidental rotation of the carrier is excluded.
Die Zapfen werden vorzugsweise mit einem radial zurückge¬ setzten Endabschnitt zum Aufsetzen eines Sicherungsmit¬ tels ausgeführt, wobei an einem mit dem Reflektor verbun- denen Basisteil eine ringförmige Auflagefläche für den Träger geschaffen ist.The pins are preferably designed with a radially zurückge ¬ set end portion for placing a Sicherungsmit ¬ means , wherein connected to a reflector with the reflector. which base part an annular support surface is created for the carrier.
Die Herstellung des Trägers ist besonders einfach, wenn dieser als Spritzgießteil hergestellt ist, wobei ein die Kontakte aufnehmendes Kontaktgehäuse in den Träger integ¬ riert wird.The preparation of the carrier is particularly simple if it is made as an injection molded part, wherein a contact housing receiving contacts is integ ¬ ration in the carrier.
Kurze Beschreibung der Zeichnung (en)Short description of the drawing (s)
Nachstehend wird die Erfindung anhand eines bevorzugten Ausführungsbeispiels näher erläutert. Es zeigen:The invention will be explained in more detail below with reference to a preferred embodiment. Show it:
Figur 1 eine dreidimensionale Darstellung einer Fahrzeug- scheinwerferrückseite;FIG. 1 shows a three-dimensional illustration of a vehicle headlight rear side;
Figur 2 eine Explosionsdarstellung des Fahrzeugscheinwerfers aus Figur 1;Figure 2 is an exploded view of the vehicle headlight of Figure 1;
Figur 3 eine Einzeldarstellung eines Reflektors des Fahrzeugscheinwerfers aus Figur 1 undFigure 3 is a detail view of a reflector of the vehicle headlight of Figure 1 and
Figuren 4 und 5 Darstellungen eines Trägers des Fahrzeug¬ scheinwerfers aus Figur 1.Figures 4 and 5 representations of a carrier of the vehicle ¬ headlight of Figure 1.
Bevorzugte Ausführung der ErfindungPreferred embodiment of the invention
Die Erfindung wird im Folgenden anhand eines Fahrzeug¬ scheinwerfers erläutert. Selbstverständlich kann die Er¬ findung auch bei anderen Scheinwerfersystem oder Leuchten eingesetzt werden.The invention will be explained below with reference to a vehicle ¬ headlamp. Of course, the He ¬ invention can also be used in other headlight system or lights.
Figur 1 zeigt eine dreidimensionale Darstellung einer Re- flektor-/Lampenbaugruppe 1, die in ein nicht dargestell¬ tes Scheinwerfergehäuse eingesetzt wird, das in Abstrahl- richtung von einer lichtdurchlässigen Frontabdeckung verschlossen ist. Die Reflektor-/Lampenbaugruppe 1 besteht im Wesentlichen aus einem Reflektor 2, auf dessen in Figur 1 sichtbare Rückseite ein Träger 4 befestigt ist, der eine Lichtquelle, beispielsweise eine Einwendel- Halogenglühlampe oder eine Xenonlampe sowie ein Kontakt¬ gehäuse 8 trägt. Das Kontaktgehäuse 8 hat in Ausnehmungen 10, 12 angeordnete Fassungskontakte, die über ebenfalls nicht dargestellte Anschlusskabel mit der Stromversorgung verbunden sind. Die dargestellte Halogenglühlampe 6 ist mit zwei radial auskragenden und übereinander liegenden Kontaktfahnen 14, 16 ausgeführt, die beim Eindrehen der Halogenglühlampe 6 von der in Figur 1 sichtbaren offenen Seite der Ausnehmungen 10, 12 her in das Kontaktgehäuse 8 einschwenken und dann in der dargestellten Enddrehposition der Halogenglühlampe 6 in Anlage mit den eingangs ge¬ nannten Kontakten stehen.1 shows a three-dimensional representation of a reflector / lamp assembly 1, which is used in a not dargestell ¬ tes headlight housing, which in radiating direction is closed by a translucent front cover. The reflector / lamp assembly 1 consists essentially of a reflector 2, on the back visible in Figure 1, a support 4 is fixed, which carries a light source, such as a Einwendel- halogen incandescent lamp or a xenon lamp and a contact ¬ housing 8. The contact housing 8 has arranged in recesses 10, 12 socket contacts, which are also connected via not shown connecting cable to the power supply. The illustrated halogen incandescent lamp 6 is embodied with two radially projecting and superimposed contact lugs 14, 16 which, when the halogen incandescent lamp 6 is screwed in, swivel into the contact housing 8 from the open side of the recesses 10, 12 visible in FIG. 1, and then in the illustrated final rotational position of FIG halogen incandescent lamp 6 is in contact with the initially called ge ¬ contacts.
Der Explosionsdarstellung gemäß Figur 2 sind weitere Einzelheiten der Baugruppe entnehmbar.The exploded view of Figure 2 further details of the assembly can be removed.
In dieser Darstellung ist das Kontaktgehäuse 8 von hinten sichtbar dargestellt, so dass die rückseitigen Mündungen der Ausnehmungen 10, 12 erkennbar sind, in die die genannten Kontakte eingesetzt sind und aus denen heraus sich die Anschlusskabel erstrecken. Das Kontaktgehäuse 8 ist etwa quaderförmig ausgeführt, und hat an seiner zur Halogenglühlampe 6 weisenden Wandung zwei Kontaktschlitze 18, 20, durch die die Kontaktfahnen 14, 16 in ihre Endpo¬ sition eingeschwenkt werden können. Weitere Einzelheiten des Kontaktgehäuses 8 werden im Folgenden anhand der Fi- guren 4 und 5 erläutert. Wie sich aus den Figuren 2 und 3 ergibt, sind an der Re¬ flektorrückseite zur Befestigung des Trägers 4 drei Zap¬ fen 22, 24, 26 ausgebildet, die jeweils einen radial zu¬ rückgesetzten Endabschnitt 28 und ein an der Reflektor- rückwandung angepresstes Basisteil 30 aufweisen. Eine Ra¬ dialschulter zwischen dem Basisteil 30 und dem Endabschnitt 28 des Zapfens 26 bildet eine Auflagefläche 32 für den Träger 4. Die drei Zapfen 22, 24, 26 liegen auf einem gemeinsamen Teilkreis, wobei der Winkelabstand gleich (120°) oder unterschiedlich gewählt sein kann. Im letzten genannten Fall ist dann eine Verdrehsicherung gewährleistet. Wie eingangs erwähnt, kann der Reflektor 2 aus Duroplast durch Pressen und ggf. Bedampfen mit einer Reflektorschicht hergestellt werden. Der erfindungsgemäße Reflektor 2 hat mittig eine Ausnehmung 34, durch die hindurch sich ein Teil des Sockels und das Lampengefäß der Lampe erstreckt. Im Unterschied zu herkömmlichen Lösungen sind an diesem Reflektor 2 jedoch keinerlei Einrichtungen zum Halten der Lampe 6 vorgesehen. Diese Halterung ist in den Träger 4 integriert, so dass dieser seine eingangs genannte Doppelfunktion - elektrische und mechanische Kontaktierung der Lampe 6 - erfüllen kann. Einzelheiten des Trägers 4 werden anhand der Figuren 4 und 5 erläu¬ tert, wobei Figur 4 eine dreidimensionale Ansicht von o- ben und Figur 5 eine Ansicht von unten des Trägers 4 zeigt .In this illustration, the contact housing 8 is shown visible from the rear, so that the rear-side mouths of the recesses 10, 12 can be seen, in which said contacts are inserted and out of which extend the connection cables. The contact housing 8 is approximately cuboidal, and has two contact slots 18, 20 on its facing the halogen incandescent lamp wall 6, 20 through which the contact lugs 14, 16 can be pivoted into their Endpo ¬ position. Further details of the contact housing 8 are explained below with reference to FIGS. 4 and 5. As is apparent from Figures 2 and 3, three Zap ¬ fen 22, 24, 26 are formed on the Re ¬ reflector rear side for attachment of the carrier 4, each having a radially ¬ to reset end portion 28 and pressed against the reflector back wall base 30 have. A Ra ¬ dialschulter between the base portion 30 and the end portion 28 of the pin 26 forms a bearing surface 32 for the carrier 4. The three pins 22, 24, 26 lie on a common pitch circle, the angular distance equal (120 °) or be selected differently can. In the latter case, a rotation is then guaranteed. As mentioned above, the reflector 2 can be made of thermosets by pressing and possibly vapor deposition with a reflector layer. The reflector 2 according to the invention has a recess 34 in the middle, through which extends a part of the base and the lamp vessel of the lamp. In contrast to conventional solutions, however, no means for holding the lamp 6 are provided on this reflector 2. This holder is integrated in the carrier 4 so that it can fulfill its double function mentioned above - electrical and mechanical contacting of the lamp 6. Details of the carrier 4 are reference to Figures 4 and 5 erläu ¬ tert wherein ben Figure 4 is an isometric view of o- and Figure 5 shows a bottom view of the carrier. 4
Demgemäß hat der Träger 4 einen etwa sternförmigen Grundkörper mit einem etwa ringförmigen Mittelteil 36, an dem drei in Radialrichtung auskragende Tragarme 38, 40, 42 ausgebildet sind. Diese sind mit Bezug zu den Zapfen 22, 24, 26 ausgerichtet und sind an ihren Endabschnitten mit Montageöffnungen 44 versehen, deren lichte Weite dem Durchmesser der Endabschnitte 28 der Zapfen 22, 24, 26 entspricht, so dass der Träger 4 auf diese aufgesetzt werden kann. Dabei kann - wie bereits vorstehend erwähnt- die Verteilung der Zapfen 22, 24, 26 an der Reflektorrückseite oder deren Geometrie so gewählt werden, dass sich der Träger 4 nur in einer bestimmten Position aufsetzen lässt.Accordingly, the carrier 4 has an approximately star-shaped basic body with an approximately annular central part 36, on which three radially projecting support arms 38, 40, 42 are formed. These are aligned with respect to the pins 22, 24, 26 and are at their end portions with Assembly openings 44 provided, whose clear width corresponds to the diameter of the end portions 28 of the pins 22, 24, 26, so that the carrier 4 can be placed on this. Here, as already mentioned above, the distribution of the pins 22, 24, 26 on the rear side of the reflector or its geometry can be selected such that the carrier 4 can only be placed in a certain position.
Das Kontaktgehäuse 8 ist an den Tragarm 40 angesetzt und steht mit seiner in Figur 2 sichtbaren Rückseite über die Umfangskanten des Tragarms 40 hinaus, so dass genügend Platz zur Aufnahme der Kontakte und der Kontaktfahnen zur Verfügung steht. Dabei schließt die zum Reflektor 2 wei¬ sende Schmalseite des Kontaktgehäuses 8 mit der zum Re- flektor 2 weisenden Großfläche des Trägers 4 ab (siehe Fig. 5) . Das Kontaktgehäuse ist dabei praktisch auf die¬ ser Schmalseite „stehend" auf dem Tragarm 40 angeordnet. Gemäß der Darstellung in Figur 5 sind an den zum Reflektor 2 weisenden Großflächen der Tragarme 38, 40 im Be- reich der Endabschnitte Ausnehmungen 46, 48 vorgesehen, entlang deren Bodenflächen der Träger 4 auf den zugeordneten Zapfen 22 bzw. 24 aufsitzt. Beim dritten Tragarm 36 ist diese Ausfräsung nicht vorgesehen. Entsprechend ist dann das Basisteil des zugeordneten Zapfens 26 mit gerin- gerer Axiallänge ausgeführt, um eine plane Anlage des Trägers 4 an den Zapfen 22, 24, 26 und damit mit Bezug zum Reflektor 2 zu ermöglichen. Durch diese Maßnahme wird ebenfalls eine Verdrehsicherung bewirkt.The contact housing 8 is attached to the support arm 40 and stands with its visible in Figure 2 rear over the peripheral edges of the support arm 40 addition, so that there is enough space for receiving the contacts and the contact lugs available. The reflector 2 for white ¬ send narrow side of the contact housing 8 closes with the side facing the reflector 2 major surface of the substrate 4 (see Fig. 5). The contact housing is arranged practically at the ¬ ser narrow side "standing" on the support arm 40th As shown in Figure 5, the supporting arms of the end portions at the side facing the reflector 2 major surfaces 38, 40 in the loading rich recesses 46, 48 are provided, The cutout is not provided along the bottom surfaces of the carrier 4 on the associated pegs 22 and 24. Accordingly, the base part of the associated peg 26 is designed with a smaller axial length in order to provide a planar contact of the carrier 4 to allow the pins 22, 24, 26 and thus with respect to the reflector 2. By this measure, a rotation is also effected.
Das Befestigen der Lampe 6 erfolgt in herkömmlicher Weise über einen Bajonettverschluss, wobei die gehäuseseitigenThe fastening of the lamp 6 is carried out in a conventional manner via a bayonet closure, wherein the housing-side
Teile dieses Bajonettverschlusses nicht - wie beim Stand der Technik - am Reflektor sondern am Träger 4 ausgebildet sind. Dazu ist das Mittelteil 36 mit einer Bajonett- ausnehmung 50 - auch Schlüsselloch genannt - ausgeführt, an deren Umfangswandung in herkömmlicher Weise drei schräg angestellte Bajonettnocken 52, 54, 56 ausgebildet sind, die mit entsprechenden Bajonettelementen am Sockel der Lampe 6 zusammenwirken, so dass diese durch Drehen zuverlässig im Trägerteil 4 verriegelt werden kann. Der Aufbau derartiger Bajonettkupplungen ist bekannt, so dass weitere Erläuterungen entbehrlich sind. Die Kupplung ist so ausgeführt, dass der Sockel der Lampe 6 in ihrer Soll¬ position entlang einer definierten Auflagefläche 58 (siehe Figur 5) auf dem Träger 4 aufliegt, wobei die Radial¬ positionierung durch die präzise Ausgestaltung der Füh- rungsflanken der Bajonettnocken 52, 54, 56 erfolgt. Da die Lagepositionierung der Lampe 6 mit Bezug zum Trägerteil 4 somit im verriegelten Zustand gewährleistet ist, hängt die Ausrichtung der Lampe 6 mit Bezug zum Reflektor 2 nur noch von der exakten Befestigung und Einjustierung des Trägers 4 am Reflektor 2 ab.Parts of this bayonet lock not - as in the state the technology - are formed on the reflector but on the support 4. For this purpose, the central part 36 with a bayonet recess 50 - also called keyhole - executed on the peripheral wall in a conventional manner three obliquely bayonet cams 52, 54, 56 are formed, which cooperate with corresponding bayonet elements on the base of the lamp 6, so that these can be reliably locked in the carrier part 4 by turning. The construction of such bayonet couplings is known, so that further explanations are unnecessary. The coupling is designed so that the base of the lamp 6 in their desired ¬ position along a defined supporting surface 58 (see Figure 5) rests on the support 4, wherein the radial ¬ positioning approximately edges thanks to the precise embodiment of the leadership of the bayonet cams 52, 54, 56 takes place. Since the position positioning of the lamp 6 with respect to the support member 4 is thus ensured in the locked state, the orientation of the lamp 6 with respect to the reflector 2 depends only on the exact attachment and adjustment of the support 4 on the reflector 2.
Bei herkömmlichen Lösungen, bei denen die Lampe 6 direkt am Reflektor 2 befestigt ist, erfolgt die Einjustierung folgendermaßen: Das Presswerkzeug zur Herstellung des Reflektors 2 wird zunächst mit Übermaß gearbeitet. Die dar- aus hergestellten Reflektoren werden mit Hilfe einer so genannten Null-Wert-Lampe (Messlampe) getestet und die Lichtverteilung ermittelt. Das Werkzeug wird so lange korrigiert, bis die gewünschte Lichtverteilung erreicht ist. Diese Anpassung der Referenzen (Anlageflächen) der Lampe 6 am Reflektor 2 ist äußerst zeitaufwendig und kos¬ tenintensiv. Bei der vorstehend beschriebenen Lösung kommt man wesentlich schneller zum Ziel, da lediglich die Position des Trägerteil 4 am Reflektor 2 geändert werden muss, um die optimale Lichtverteilung einzustellen. Diese Positionsänderung kann auf einfache Weisung durch Anpas- sung der Zapfengeometrie, Zapfenlage oder der Endab¬ schnitte 28 der Zapfen erfolgen. Dies kann im Werkzeug zur Herstellung des Reflektors 2 beispielsweise dadurch erfolgen, dass die Zapfenlänge durch Einsätze am Press¬ werkzeug angepasst wird, indem diese Zapfen durch Einsät- ze des Werkzeuges ausgebildet werden, die jeweils ein- oder ausgedreht werden, um Abweichungen in axialer Richtung zu korrigieren. Seitliche (radiale) Abweichungen der Lampenlage können durch seitliches Verschieben dieser Einsätze und damit der Zapfenposition verändert werden. Die kostenintensive Nachbearbeitung des Werkzeugs ent¬ fällt somit, da lediglich eine FeinJustierung der Werkzeugeinsätze erforderlich ist.In conventional solutions in which the lamp 6 is attached directly to the reflector 2, the Einjustierung takes place as follows: The pressing tool for the production of the reflector 2 is initially worked with excess. The reflectors made of these are tested with the aid of a so-called zero-value lamp (measuring lamp) and the light distribution is determined. The tool is corrected until the desired light distribution is achieved. This adaptation of the references (contact surfaces) of the lamp 6 to the reflector 2 is extremely time consuming and kos ¬ tenintensiv. In the solution described above one arrives much faster to the goal, since only the position of the carrier part 4 on the reflector 2 has to be changed in order to set the optimum light distribution. This position change can be made easily transfer through adaptation of the journal geometry, Stud position or Endab ¬ sections 28 of the pin. This can be done in the tool for the manufacture of the reflector 2, for example in that the pin length is adjusted by means of inserts on the press ¬ tool by these pins are formed by inserts of the tool, which are respectively turned on or turned out to deviations in the axial direction to correct. Lateral (radial) deviations of the lamp position can be changed by lateral displacement of these inserts and thus the pin position. The cost-intensive reworking of the tool ent ¬ falls thus, since only a fine adjustment of the tool inserts is required.
Bei der Montage der Baugruppe wird der vorkonfektionierte Träger 4 auf die Endabschnitte 28 der Zapfen 22, 24, 26 aufgesetzt und anschließend auf die aus dem Träger 4 her¬ aus stehenden Endabschnitte 28 jeweils ein Sicherungsmit¬ tel beispielsweise eine Sicherungsscheibe 58 gemäß den Figuren 1 und 2 aufgesetzt. Derartige Sicherungsscheiben 58 sind mit Federzungen ausgeführt, die den Träger 4 kraft- und formschlüssig am jeweiligen Zapfen 22, 24, 26 halten. Selbstverständlich können auch andere Sicherungsmittel, wie beispielsweise Schrauben oder dergleichen verwendet werden. Des Weiteren ist es auch möglich, den Träger durch Kleben, Umformen oder auf sonstige Weise mit dem Reflektor 2 zu verbinden. Anstelle der Zapfen können auch hülsenartige Aufnahmen vorgesehen werden, in die dann am Träger 4 ausgebildete Zapfen oder in den Träger 4 gesteckte Sicherungsmittel, bspw. Befestigungsbolzen eingesetzt werden.When mounting the module, the prefabricated carrier 4 is placed on the end portions 28 of the pins 22, 24, 26 and then on the forth from the carrier 4 forth ¬ end sections 28 each have a Sicherungsmit ¬ tel, for example, a lock washer 58 according to Figures 1 and 2 attached. Such locking washers 58 are designed with spring tongues, which hold the carrier 4 non-positively and positively on the respective pin 22, 24, 26. Of course, other securing means, such as screws or the like can be used. Furthermore, it is also possible to connect the carrier by gluing, forming or otherwise with the reflector 2. Instead of the pin and sleeve-like receptacles can be provided in the then formed on the carrier 4 pins or inserted into the carrier 4 securing means, for example. Fastening bolts are used.
Bei der vorbeschriebenen Lösung ist der Bajonettver- Schluss im Träger 4 integriert, prinzipiell könnten diese Elemente des Bajonettverschlusses auch als Metallbauteil eingesetzt werden.In the above-described solution, the bayonet fitting is integrated in the carrier 4, in principle these elements of the bayonet closure could also be used as a metal component.
Offenbart ist ein Scheinwerfer, insbesondere ein Fahr¬ zeugscheinwerfer, bei dem an einem Reflektor 2 ein Träger 4 befestigt ist, der eine Lampe 6, vorzugsweise eine Ha¬ logenglühlampe und Kontakte zur Kontaktierung der Lampe 6 trägt. In den Träger 4 sind somit die Funktionen Kontaktieren sowie mechanische Halterung sowie die Referenzen zur Lagepositionierung der Lampe 6 integriert. Disclosed is a headlamp, in particular a driving ¬ zeugscheinwerfer, in which a reflector 2, a support 4 is fixed, which carries a lamp 6, preferably a Ha ¬ logenglühlampe and contacts for contacting the lamp 6. In the support 4 thus the functions contacting and mechanical support and the references for positioning the lamp 6 are integrated.

Claims

Ansprüche claims
1. Scheinwerfer, insbesondere Fahrzeugscheinwerfer mit einem Reflektor (2), dem eine Lichtquelle (6) zuge¬ ordnet ist, die mittels eines am Reflektor (2) fest¬ gelegten, elektrische Kontakte tragenden Trägers (4) kontaktiert ist, der auch eine Kupplung (50) zum Be¬ festigen der Lichtquelle (6) hat.1. Headlight, in particular vehicle headlamp with a reflector (2), which a light source (6) is supplied ¬ arranged, by means of a on the reflector (2) fixed ¬ down, electric contacts supporting carrier (4) is contacted, which is also a clutch (50) for Be ¬ consolidate the light source (6).
2. Scheinwerfer nach Anspruch 1, wobei die Kupplung eine Bajonettkupplung mit einer Bajonettausnehmung (50) ist, wobei am Träger (4) eine Referenzfläche (58) zur Lagepositionierung der Lichtquelle (6) ausgebildet ist.2. Headlight according to claim 1, wherein the coupling is a bayonet coupling with a bayonet recess (50), wherein on the support (4) has a reference surface (58) for positional positioning of the light source (6) is formed.
3. Scheinwerfer nach einem der vorhergehenden Ansprüche, wobei der Träger (4) über eine Dreipunktlagerung am Reflektor (2) abgestützt ist.3. Headlight according to one of the preceding claims, wherein the carrier (4) via a three-point bearing on the reflector (2) is supported.
4. Scheinwerfer nach Anspruch 3, wobei die Kupplung (50) an einem Mittelteil (36) des Trägers (4) ausgebildet ist, von dem sich drei radial auskragende Tragarme (38, 40, 42) weg erstrecken, von denen einer ein Kontaktgehäuse (8) für die Kontakte trägt und die an ih- ren Enden Montageöffnungen (44) aufweisen.4. Headlight according to claim 3, wherein the coupling (50) on a central part (36) of the carrier (4) is formed, of which three radially projecting support arms (38, 40, 42) extend away, one of which is a contact housing ( 8) for the contacts and having at their ends mounting holes (44).
5. Scheinwerfer nach einem der vorhergehenden Ansprüche, wobei an einer Rückseite des Reflektors (2) Zapfen (22, 24, 26) zum Aufsetzen des Trägers (4) ausgebil¬ det sind. 5. Headlight according to one of the preceding claims, wherein on a rear side of the reflector (2) pins (22, 24, 26) for placing the carrier (4) are ausgebil ¬ det.
6. Scheinwerfer nach Anspruch 5, wobei die Zapfen (22, 24, 26) asymmetrisch ausgebildet oder angeordnet sind.6. Headlight according to claim 5, wherein the pins (22, 24, 26) are asymmetrically formed or arranged.
7. Scheinwerfer nach Anspruch 5 oder 6, wobei jeder Zap- fen (22, 24, 26) ein Basisteil (30) und einen radial zurückgesetzten Endabschnitt (28) hat, so dass eine ringförmige Auflagefläche (32) für den Träger (4) ge¬ schaffen ist.7. A headlight according to claim 5 or 6, wherein each pin (22, 24, 26) has a base part (30) and a radially recessed end section (28), so that an annular bearing surface (32) for the carrier (4). is ¬ create.
8. Scheinwerfer nach einem der vorhergehenden Ansprüche, wobei der Träger (4) durch Spritzgießen aus Kunststoff hergestellt ist.8. Headlight according to one of the preceding claims, wherein the carrier (4) is made by injection molding of plastic.
9. Scheinwerfer nach einem der vorhergehenden Ansprüche, wobei die Lichtquelle (6) eine Halogenglühlampe ist. 9. Headlight according to one of the preceding claims, wherein the light source (6) is a halogen incandescent lamp.
EP08717385A 2007-03-08 2008-03-04 Headlight Not-in-force EP2115349B1 (en)

Applications Claiming Priority (2)

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DE102007011430A DE102007011430A1 (en) 2007-03-08 2007-03-08 headlights
PCT/EP2008/052629 WO2008107442A1 (en) 2007-03-08 2008-03-04 Headlight

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EP2115349A1 true EP2115349A1 (en) 2009-11-11
EP2115349B1 EP2115349B1 (en) 2013-01-23

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AT513362B1 (en) * 2012-08-23 2014-06-15 Zizala Lichtsysteme Gmbh Method for positioning a light-shaping body
DE102013102835B4 (en) * 2013-03-20 2022-12-29 HELLA GmbH & Co. KGaA lighting device

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DE1034045B (en) * 1955-11-04 1958-07-10 Fabrication Des Projecteurs El Vehicle headlights with pin lamp and parking lights
DE3715532C2 (en) * 1987-05-09 1995-08-31 Bosch Gmbh Robert Light for motor vehicles, in particular front parking and / or position lights for passenger vehicles
FR2790063B1 (en) * 1999-02-22 2001-06-08 Valeo Vision MOTOR VEHICLE HEADLIGHT COMPRISING IMPROVED LAMP RETAINING MEANS
DE29924897U1 (en) 1999-03-29 2006-06-29 Hella Kgaa Hueck & Co. Lamp holder for vehicle headlamp, has a holder in which lamp can be pre-mounted and that can be attached to lamp neck of a reflector with a locking device, where holder has bayonet tongues that can be locked to lamp neck reflector
DE102005033882B4 (en) * 2005-07-20 2015-04-09 Automotive Lighting Reutlingen Gmbh Lighting device for motor vehicles, assembly for such a lighting device and method for mounting such a lighting device
DE102005045765A1 (en) 2005-09-23 2007-04-12 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH vehicle headlights

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WO2008107442A1 (en) 2008-09-12
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