EP1006550A1 - Electric lamp and lighting device with such an electric lamp - Google Patents

Electric lamp and lighting device with such an electric lamp Download PDF

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Publication number
EP1006550A1
EP1006550A1 EP99123579A EP99123579A EP1006550A1 EP 1006550 A1 EP1006550 A1 EP 1006550A1 EP 99123579 A EP99123579 A EP 99123579A EP 99123579 A EP99123579 A EP 99123579A EP 1006550 A1 EP1006550 A1 EP 1006550A1
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EP
European Patent Office
Prior art keywords
lamp
reflector
edge
opening
bulb
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
EP99123579A
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German (de)
French (fr)
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EP1006550B1 (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
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
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    • 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
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/42—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp
    • H01K1/46—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp supported by a separate part, e.g. base, cap
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
    • H01J5/48—Means forming part of the tube or lamp for the purpose of supporting it
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes

Definitions

  • the invention relates to an electric lamp according to the preamble of the claim 1 and a lighting device with such a lamp.
  • Such an electric lamp is for example in the international patent application WO 97/25733 discloses.
  • This laid-open specification describes an electrical one Incandescent lamp, in particular a motor vehicle headlight lamp, with an in a glass lamp bulb enclosed and a lamp base made of metal and plastic parts.
  • the gas-tight one Pinch base of the lamp bulb is fixed in a metallic holder part, which in turn directly or via an intermediate ring with a metallic, ring-shaped Carrier sleeve is connected.
  • the metallic carrier sleeve is in the same with the electrical Connections of the lamp equipped plastic base part of the lamp base anchored.
  • a reflector To mount the lamp in the lamp socket Opening of a reflector has the annular support sleeve three in one plane arranged reference lugs distributed equidistantly over the circumference of the carrier sleeve, which engage in the lamp mounting opening of the reflector, and one radially after external pressure spring, with a clamp on the edge of the lamp mounting opening of the reflector.
  • the carrier sleeve has below the three reference lugs one point of contact with the edge of the lamp mounting opening of the reflector. One of these points of contact is formed by the pressure spring.
  • the three reference lugs are on the inside of the reflector.
  • the seal the lamp mounting opening of the reflector is designed as a lamp holder by means of a silicone sealing ring, which is between the outside of the reflector and the plastic base part of the lamp base is arranged.
  • This one made of metal and
  • the lamp base constructed of plastic parts is guaranteed on the one hand by its metallic Holder parts for the lamp bulb an exact adjustment of the filament position compared to the reference plane defined by the three reference lugs and by its plastic base part a satisfactory sealing of the lamp base and of the reflector against moisture.
  • this affects the manufacture of the reflector forming ridge on the outer edge of the lamp mounting opening of the Reflector the installation position of the lamp unfavorable and causes an undesirable Misalignment of the filament relative to the optical axis of the reflector.
  • the object of the invention to provide an electric lamp with an improved To provide lamp bases, where the disadvantage of lamps according to the state technology is avoided.
  • the lamp of the invention despite any burrs on the lamp mounting opening of the reflector, with the correct position of the filament with respect to the optical axis of the reflector be mountable.
  • the electric lamp according to the invention has a lamp base, a translucent Lamp bulb and at least one enclosed by the lamp bulb Illuminant.
  • the lamp base has a metallic holder part in which the lamp bulb is fixed, and a metallic, ring-shaped connected to the holder part Carrier sleeve and a provided with the electrical connections of the lamp Plastic base part in which the carrier sleeve is anchored.
  • the ring-shaped carrier sleeve has three in a common, perpendicular to the ring axis Level reference lugs that engage in a lamp socket Serve mounting opening of a reflector, and one acting radially outwards Pressure spring, which is used to fix the lamp in the form of a lamp holder Opening of the reflector is used, the pressure spring below a first Reference nose is arranged.
  • the annular carrier sleeve on the outside, one below each of the second and third reference lugs recess or a recess spaced from the reference lugs. Thereby If there is any burr on the lamp mounting opening of the reflector there are no points of contact with the lamp base.
  • a misalignment of the position of the lamp with respect to the reflector axis is prevented in this way because the three points of contact the support sleeve with the edge of the lamp mounting opening of the reflector outside the area of the lamp mounting opening, which may have a burr are arranged.
  • the lighting system according to the invention has in addition to the lamp with the Features described above, a reflector, the one facing the lamp bulb Inside of the reflector and an outside of the reflector facing away from the lamp bulb as well as a light exit opening and a lamp socket Lamp mounting opening has.
  • This lamp mounting opening is through one Border bounded by an inner edge on the inside of the reflector and on the outside of the reflector has an outer edge.
  • the lamp's reference lugs grip into the lamp mounting opening and lie on the inside of the reflector on the reflector on.
  • the pressure spring lies on the edge of the lamp mounting opening and defines a first point of contact between the lamp base and the edge the lamp mounting opening.
  • the carrier sleeve is below the second and third reference lug on the edge of the mounting opening and defines two more Points of contact between the lamp base and the edge of the lamp mounting opening.
  • the depressions in the outside of the carrier sleeve or the Recesses of the support sleeve are arranged so that they are at the same level with the Outside edge of the edge of the lamp mounting opening are arranged.
  • the preferred embodiment of the invention is a Single-filament halogen lamp for use in a motor vehicle headlight is provided.
  • This lamp has a glass, essentially cylindrical Lamp bulb 10 with a gas-tight squeeze foot 10a.
  • the Dome 10b of lamp bulb 10 is provided with a light-absorbing coating.
  • a light source that is aligned parallel to the lamp bulb axis serves as the light source Incandescent filament 11, which is electrically conductive with two led out of the squeezing foot 10a, Power supply lines 12, 13 made of molybdenum wire are connected.
  • the squeezing foot 10a of the lamp bulb 10 is in a metallic holder from the cup-like holder part 14a, the intermediate ring 14e and the annular Carrier sleeve 14b is fixed.
  • the lamp base is also provided with the electrical connections 16, 17 of the lamp Plastic base part 15 in which the annular metallic support sleeve 14b is anchored.
  • the carrier sleeve 14b has three reference lugs lying in one plane 14c and a pressure spring 14d for mounting the lamp in the reflector 20 a motor vehicle headlight.
  • the reflector 20 is sealed by means of a silicone sealing ring 19 which on the outer wall 20b of the reflector 20 and abuts the plastic base part 15.
  • the construction of the lamp is shown in FIG of the preferred embodiment and their use in a headlight schematically shown.
  • FIGS 2 and 3 show details of the arrangement of the lamp in the reflector 20 of the Automotive headlights.
  • the three reference lugs 14c engage in the lamp holder trained mounting opening 21 of the reflector 20 and lie on the inside 20a of the reflector 20. They 14c are equidistant over the circumference of the ring-shaped Carrier sleeve 14b distributed.
  • the pressure spring 14d of the carrier sleeve 14b is below a first reference lug 14c and resiliently on the edge 22 of the Lamp mounting opening 21 on.
  • Below the other two reference lugs 14c the outside of the carrier sleeve 14b each has a recess 14f.
  • the wells 14f are each at a distance of approximately 2.4 mm below the reference lugs 14c arranged.
  • the reflector wall has in the area of the lamp mounting opening 21 a thickness of 3 mm.
  • the Recesses 14f in the outside of the carrier sleeve 14b are at the same height the outer edge 22a2 of the opening edge 21 is arranged.
  • the edge 22 of the lamp mounting opening has other reference lugs 14c 21 of the reflector 20 each have a prismatic contact surface 22a.
  • the outside the support sleeve 14b of the lamp base lies on these two prismatic ones Contact surfaces 22a with a press fit.
  • the clamping effect is by means of Pressure spring 14d generated.
  • the contact surfaces between the support sleeve 14b and contact surfaces 22a are located below the reference lugs 14c and above the depressions 14f. Because of the depressions 14f, the one that may have a burr is Outer edge 22a2 of the edge 22 of the mounting opening 21 without contact to the lamp base and in particular to the support sleeve 14b.
  • the carrier sleeve 14b instead of the two depressions 14f also have a ring segment-shaped groove in its outer wall, which in the area of prismatic contact surfaces 22a arranged at the same level with the outer edge 22a2 is.
  • the carrier sleeve 14b can also have cutouts, that is, have openings in the carrier sleeve wall.

Abstract

The lamp has a lamp socket, a transparent bulb and at least one light device enclosed by the bulb. The socket has a metal holder part in which the bulb is fixed, an annular metal carrier sleeve (14b) joined to the holder part and anchored in a plastics base part (15) fitted with the electrical connectors for the lamp. The sleeve has three reference protrusions (14c) to engage a reflector (20) opening. The sleeve also has a radially outwardly acting pressure spring for fixing the lamp in the lamp holder opening of the reflector. An Independent claim is also included for an illumination arrangement with an electric lamp.

Description

Die Erfindung betrifft eine elektrische Lampe gemäß dem Oberbegriff des Patentanspruchs 1 und eine Beleuchtungsvorrichtung mit einer derartigen Lampe.The invention relates to an electric lamp according to the preamble of the claim 1 and a lighting device with such a lamp.

I. Stand der Technik I. State of the art

Eine derartige elektrische Lampe ist beispielsweise in der internationalen Patentanmeldung WO 97/25733 offenbart. Diese Offenlegungsschrift beschreibt eine elektrische Glühlampe, insbesondere eine Kraftfahrzeugscheinwerferlampe, mit einer in einem gläsernen Lampenkolben eingeschlossenen Glühwendel und einem aus Metall- und Kunststoffteilen bestehenden Lampensockel. Der gasdicht verschlossene Quetschfuß des Lampenkolbens ist in einem metallischen Halterteil fixiert, das seinerseits direkt oder über einen Zwischenring mit einer metallischen, ringförmigen Trägerhülse verbunden ist. Die metallische Trägerhülse ist in dem mit den elektrischen Anschlüssen der Lampe ausgestatteten Kunststoffsockelteil des Lampensockels verankert. Zur Montage der Lampe in der als Lampenfassung ausgebildeten Öffnung eines Reflektors besitzt die ringförmige Trägerhülse drei in einer Ebene angeordnete, äquidistant über der Umfang der Trägerhülse verteilte Referenznasen, die in die Lampen-Montage-Öffnung des Reflektors eingreifen, und eine radial nach außen wirkende Andruckfeder, die mit Klemmsitz am Rand der Lampen-Montage-Öffnung des Reflektors anliegt. Die Trägerhülse besitzt unterhalb der drei Referenznasen jeweils einen Berührungspunkt mit dem Rand der Lampen-Montage-Öffnung des Reflektors. Einer dieser Berührungspunkte wird von der Andruckfeder gebildet. Die drei Referenznasen liegen auf der Innenseite des Reflektors auf. Die Abdichtung der als Lampenfassung ausgebildeten Lampen-Montage-Öffnung des Reflektors erfolgt mittels eines Silikondichtungsringes, der zwischen der Reflektoraußenseite und dem Kunststoffsockelteil des Lampensockels angeordnet ist. Dieser, aus Metall- und Kunststoffteilen aufgebaute Lampensockel gewährleistet einerseits durch seine metallischen Halterteile für den Lampenkolben eine exakte Justage der Glühwendellage gegenüber der durch die drei Referenznasen definierten Referenzebene und durch sein Kunststoffsockelteil eine zufriedenstellende Abdichtung des Lampensockels und des Reflektors gegen Feuchtigkeit. Allerdings beeinflußt ein sich bei der Reflektorherstellung bildender Grat an der Außenkante der Lampen-Montage-Öffnung des Reflektors die Einbaulage der Lampe ungünstig und verursacht eine unerwünschte Dejustage der Glühwendel gegenüber der optischen Achse des Reflektors.Such an electric lamp is for example in the international patent application WO 97/25733 discloses. This laid-open specification describes an electrical one Incandescent lamp, in particular a motor vehicle headlight lamp, with an in a glass lamp bulb enclosed and a lamp base made of metal and plastic parts. The gas-tight one Pinch base of the lamp bulb is fixed in a metallic holder part, which in turn directly or via an intermediate ring with a metallic, ring-shaped Carrier sleeve is connected. The metallic carrier sleeve is in the same with the electrical Connections of the lamp equipped plastic base part of the lamp base anchored. To mount the lamp in the lamp socket Opening of a reflector has the annular support sleeve three in one plane arranged reference lugs distributed equidistantly over the circumference of the carrier sleeve, which engage in the lamp mounting opening of the reflector, and one radially after external pressure spring, with a clamp on the edge of the lamp mounting opening of the reflector. The carrier sleeve has below the three reference lugs one point of contact with the edge of the lamp mounting opening of the reflector. One of these points of contact is formed by the pressure spring. The three reference lugs are on the inside of the reflector. The seal the lamp mounting opening of the reflector is designed as a lamp holder by means of a silicone sealing ring, which is between the outside of the reflector and the plastic base part of the lamp base is arranged. This one, made of metal and The lamp base constructed of plastic parts is guaranteed on the one hand by its metallic Holder parts for the lamp bulb an exact adjustment of the filament position compared to the reference plane defined by the three reference lugs and by its plastic base part a satisfactory sealing of the lamp base and of the reflector against moisture. However, this affects the manufacture of the reflector forming ridge on the outer edge of the lamp mounting opening of the Reflector the installation position of the lamp unfavorable and causes an undesirable Misalignment of the filament relative to the optical axis of the reflector.

II. Darstellung der Erfindung II. Presentation of the invention

Es ist die Aufgabe der Erfindung, eine elektrische Lampe mit einem verbesserten Lampensockel bereitzustellen, bei denen der Nachteil der Lampen gemäß des Standes der Technik vermieden wird. Insbesondere soll die erfindungsgemäße Lampe trotz etwaige Gratbildung an der Lampen-Montage-Öffnung des Reflektors problemlos, mit korrekter Lage der Glühwendel bezüglich der optischen Achse des Reflektors montierbar sein.It is the object of the invention to provide an electric lamp with an improved To provide lamp bases, where the disadvantage of lamps according to the state technology is avoided. In particular, the lamp of the invention despite any burrs on the lamp mounting opening of the reflector, with the correct position of the filament with respect to the optical axis of the reflector be mountable.

Diese Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des Patentanspruchs 1 gelöst. Besonders vorteilhafte Ausführungen der Erfindung sind in den Unteransprüchen beschrieben.This object is achieved by the characterizing features of Claim 1 solved. Particularly advantageous embodiments of the invention are shown in described the subclaims.

Die erfindungsgemäße elektrische Lampe besitzt einen Lampensockel, einen lichtdurchlässigen Lampenkolben und mindestens ein vom Lampenkolben umschlossenes Leuchtmittel. Der Lampensockel weist ein metallisches Halterteil, in dem der Lampenkolben fixiert ist, und eine mit dem Halterteil verbundene metallische, ringförmige Trägerhülse sowie ein mit den elektrischen Anschlüssen der Lampe versehenes Kunststoffsockelteil, in dem die Trägerhülse verankert ist, auf. Die ringförmige Trägerhülse besitzt drei in einer gemeinsamen, senkrecht zur Ringachse angeordneten Ebene liegende Referenznasen, die zum Eingreifen in eine als Lampenfassung ausgebildete Montage-Öffnung eines Reflektors dienen, und eine radial nach außen wirkende Andruckfeder, die zur Fixierung der Lampe in der als Lampenfassung ausgebildeten Öffnung des Reflektors dient, wobei die Andruckfeder unterhalb einer ersten Referenznase angeordnet ist. Erfindungsgemäß weist die ringförmige Trägerhülse auf ihrer Außenseite, unterhalb der zweiten und dritten Referenznase jeweils eine von den Referenznasen beabstandete Vertiefung oder eine Aussparung auf. Dadurch besitzt ein etwaiger Grat an der Lampen-Montage-Öffnung des Reflektors keine Berührungspunkte mit dem Lampensockel. Eine Dejustage der Lage des Leuchtmittels bezüglich der Reflektorachse wird auf diese Weise verhindert, da die drei Berührungspunkte der Trägerhülse mit dem Rand der Lampen-Montage-Öffnung des Reflektors außerhalb des eventuell mit einem Grat behafteten Bereiches der Lampen-Montage-Öffnung angeordnet sind.The electric lamp according to the invention has a lamp base, a translucent Lamp bulb and at least one enclosed by the lamp bulb Illuminant. The lamp base has a metallic holder part in which the lamp bulb is fixed, and a metallic, ring-shaped connected to the holder part Carrier sleeve and a provided with the electrical connections of the lamp Plastic base part in which the carrier sleeve is anchored. The ring-shaped carrier sleeve has three in a common, perpendicular to the ring axis Level reference lugs that engage in a lamp socket Serve mounting opening of a reflector, and one acting radially outwards Pressure spring, which is used to fix the lamp in the form of a lamp holder Opening of the reflector is used, the pressure spring below a first Reference nose is arranged. According to the invention, the annular carrier sleeve on the outside, one below each of the second and third reference lugs recess or a recess spaced from the reference lugs. Thereby If there is any burr on the lamp mounting opening of the reflector there are no points of contact with the lamp base. A misalignment of the position of the lamp with respect to the reflector axis is prevented in this way because the three points of contact the support sleeve with the edge of the lamp mounting opening of the reflector outside the area of the lamp mounting opening, which may have a burr are arranged.

Das erfindungsgemäße Beleuchtungssystem besitzt zusätzlich zur Lampe mit den oben beschriebenen Merkmalen einen Reflektor, der eine dem Lampenkolben zugewandte Reflektorinnenseite und eine vom Lampenkolben abgewandte Reflektoraußenseite sowie eine Lichtaustrittsöffnung und eine als Lampenfassung ausgebildete Lampen-Montage-Öffnung aufweist. Diese Lampen-Montage-Öffnung ist durch einen Rand begrenzt, der auf der Reflektorinnenseite eine Innenkante und auf der Reflektoraußenseite eine Außenkante aufweist. Die Referenznasen der Lampe greifen in die Lampen-Montage-Öffnung ein und liegen auf der Reflektorinnenseite am Reflektor an. Die Andruckfeder liegt am Rand der Lampen-Montage-Öffnung an und definiert einen ersten Berührungspunkt zwischen dem Lampensockel und dem Rand der Lampen-Montage-Öffnung. Die Trägerhülse liegt unterhalb der zweiten und dritten Referenznase am Rand der Montage-Öffnung an und definiert zwei weitere Berührungspunkte zwischen dem Lampensockel und dem Rand der Lampen-Montage-Öffnung. Die Vertiefungen in der Außenseite der Trägerhülse bzw. die Aussparungen der Trägerhülse sind so angeordnet, daß sie auf gleicher Höhe mit der Außenkante des Randes der Lampen-Montage-Öffnung angeordnet sind. Durch diese Maßnahmen ist gewährleistet, daß die vorgenannte Außenkante berührungsfrei zum Lampensockel angeordnet ist und eine etwaige Gratbildung an der Außenkante keine Dejustage der Lampe in der als Lampenfassung ausgebildeten Montage-Öffnung des Reflektors verursacht. The lighting system according to the invention has in addition to the lamp with the Features described above, a reflector, the one facing the lamp bulb Inside of the reflector and an outside of the reflector facing away from the lamp bulb as well as a light exit opening and a lamp socket Lamp mounting opening has. This lamp mounting opening is through one Border bounded by an inner edge on the inside of the reflector and on the outside of the reflector has an outer edge. The lamp's reference lugs grip into the lamp mounting opening and lie on the inside of the reflector on the reflector on. The pressure spring lies on the edge of the lamp mounting opening and defines a first point of contact between the lamp base and the edge the lamp mounting opening. The carrier sleeve is below the second and third reference lug on the edge of the mounting opening and defines two more Points of contact between the lamp base and the edge of the lamp mounting opening. The depressions in the outside of the carrier sleeve or the Recesses of the support sleeve are arranged so that they are at the same level with the Outside edge of the edge of the lamp mounting opening are arranged. Through this Measures is ensured that the aforementioned outer edge without contact to Lamp base is arranged and no burrs on the outer edge Misalignment of the lamp in the mounting opening of the lamp socket Causes reflector.

III. Beschreibung des bevorzugten Ausführungsbeispiels III. Description of the preferred embodiment

Nachstehend wird die Erfindung anhand eines bevorzugten Ausführungsbeispiels näher erläutert. Es zeigen:

Figur 1
eine schematische Darstellung des bevorzugten Ausführungsbeispiels der erfindungsgemäßen Lampe mit Reflektor, teilweise geschnitten
Figur 2
eine Draufsicht auf die Verbindung zwischen der Trägerhülse der Lampe aus Figur 1 und der Lampen-Montage-Öffnung des Reflektors bei im Reflektor eingesetzter Lampe
Figur 3
einen Querschnitt durch den Lampensockel und den Reflektor entlang der Schnittlinie A-A aus Figur 2
The invention is explained in more detail below on the basis of a preferred exemplary embodiment. Show it:
Figure 1
a schematic representation of the preferred embodiment of the lamp according to the invention with reflector, partially cut
Figure 2
a plan view of the connection between the support sleeve of the lamp of Figure 1 and the lamp mounting opening of the reflector when the lamp is inserted in the reflector
Figure 3
3 shows a cross section through the lamp base and the reflector along the section line AA from FIG. 2

Bei dem bevorzugten Ausführungsbeispiel der Erfindung handelt es sich um eine Einfaden-Halogenglühlampe, die für den Einsatz in einem Kraftfahrzeugscheinwerfer vorgesehen ist. Diese Lampe besitzt einen gläsernen, im wesentlichen zylindrischen Lampenkolben 10 mit einem gasdicht verschlossenen Quetschfuß 10a. Der Dom 10b des Lampenkolbens 10 ist mit einer lichtabsorbierenden Beschichtung versehen. Als Lichtquelle dient eine parallel zur Lampenkolbenachse ausgerichtete Glühwendel 11, die elektrisch leitend mit zwei aus dem Quetschfuß 10a herausgeführten, aus Molybdändraht bestehenden Stromzuführungen 12, 13 verbunden ist. Der Quetschfuß 10a des Lampenkolbens 10 ist in einer metallischen Halterung, die aus dem napfartigen Halterteil 14a, dem Zwischenring 14e und der ringförmigen Trägerhülse 14b besteht, fixiert. Neben der metallischen Halterung 14a, 14b weist der Lampensockel auch ein mit den elektrischen Anschlüssen 16, 17 der Lampe versehenes Kunststoffsockelteil 15 auf, in dem die ringförmige metallische Trägerhülse 14b verankert ist. Die Trägerhülse 14b besitzt drei in einer Ebene liegende Referenznasen 14c und eine Andruckfeder 14d zur Montage der Lampe in dem Reflektor 20 eines Kraftfahrzeugscheinwerfers. Die Abdichtung des Reflektors 20 erfolgt mittels eines Silikondichtungsringes 19, der an der Außenwand 20b des Reflektors 20 und an dem Kunststoffsockelteil 15 anliegt. In Figur 1 ist der Aufbau der Lampe gemäß des bevorzugten Ausführungsbeispiels und ihr Einsatz in einem Scheinwerfer schematisch dargestellt.The preferred embodiment of the invention is a Single-filament halogen lamp for use in a motor vehicle headlight is provided. This lamp has a glass, essentially cylindrical Lamp bulb 10 with a gas-tight squeeze foot 10a. The Dome 10b of lamp bulb 10 is provided with a light-absorbing coating. A light source that is aligned parallel to the lamp bulb axis serves as the light source Incandescent filament 11, which is electrically conductive with two led out of the squeezing foot 10a, Power supply lines 12, 13 made of molybdenum wire are connected. The squeezing foot 10a of the lamp bulb 10 is in a metallic holder from the cup-like holder part 14a, the intermediate ring 14e and the annular Carrier sleeve 14b is fixed. In addition to the metallic holder 14a, 14b points the lamp base is also provided with the electrical connections 16, 17 of the lamp Plastic base part 15 in which the annular metallic support sleeve 14b is anchored. The carrier sleeve 14b has three reference lugs lying in one plane 14c and a pressure spring 14d for mounting the lamp in the reflector 20 a motor vehicle headlight. The reflector 20 is sealed by means of a silicone sealing ring 19 which on the outer wall 20b of the reflector 20 and abuts the plastic base part 15. The construction of the lamp is shown in FIG of the preferred embodiment and their use in a headlight schematically shown.

Die Figuren 2 und 3 zeigen Details der Anordnung der Lampe im Reflektor 20 des Kfz-Scheinwerfers. Die drei Referenznasen 14c greifen in die als Lampenfassung ausgebildete Montage-Öffnung 21 des Reflektors 20 ein und liegen an der Innenseite 20a des Reflektors 20 an. Sie 14c sind äquidistant über den Umfang der ringförmigen Trägerhülse 14b verteilt. Die Andruckfeder 14d der Trägerhülse 14b ist unterhalb einer ersten Referenznase 14c angeordnet und liegt federnd an dem Rand 22 der Lampen-Montage-Öffnung 21 an. Unterhalb der anderen beiden Referenznasen 14c weist die Außenseite der Trägerhülse 14b jeweils eine Vertiefung 14f auf. Die Vertiefungen 14f sind jeweils in einem Abstand von ca. 2,4 mm unterhalb der Referenznasen 14c angeordnet. Im Bereich der Lampen-Montage-Öffnung 21 besitzt die Reflektorwand eine Dicke von 3 mm. Die Innenkante 22a1, die den Rand 22 auf der Reflektorinnenseite 20a begrenzt, und die Außenkante 22a2, die den Rand 22 auf der Reflektoraußenseite 20b begrenzt, weisen daher einen Abstand von 3 mm auf. Die Vertiefungen 14f in der Außenseite der Trägerhülse 14b sind auf gleicher Höhe mit der Außenkante 22a2 des Öffnungsrandes 21 angeordnet. Im Bereich der beiden vorgenannten anderen Referenznasen 14c besitzt der Rand 22 der Lampen-Montage-Öffnung 21 des Reflektors 20 jeweils eine prismatische Anlagefläche 22a. Die Außenseite der Trägerhülse 14b des Lampensockels liegt an diesen beiden prismatischen Anlageflächen 22a mit Klemmsitz an. Die Klemmwirkung wird mittels der Andruckfeder 14d erzeugt. Die Kontaktflächen zwischen Trägerhülse 14b und Anlageflächen 22a befinden sich unterhalb der Referenznasen 14c und oberhalb der Vertiefungen 14f. Aufgrund der Vertiefungen 14f ist die eventuell mit einem Grat behaftete Außenkante 22a2 des Randes 22 der Montage-Öffnung 21 berührungsfrei zum Lampensockel und insbesondere zur Trägerhülse 14b angeordnet.Figures 2 and 3 show details of the arrangement of the lamp in the reflector 20 of the Automotive headlights. The three reference lugs 14c engage in the lamp holder trained mounting opening 21 of the reflector 20 and lie on the inside 20a of the reflector 20. They 14c are equidistant over the circumference of the ring-shaped Carrier sleeve 14b distributed. The pressure spring 14d of the carrier sleeve 14b is below a first reference lug 14c and resiliently on the edge 22 of the Lamp mounting opening 21 on. Below the other two reference lugs 14c the outside of the carrier sleeve 14b each has a recess 14f. The wells 14f are each at a distance of approximately 2.4 mm below the reference lugs 14c arranged. The reflector wall has in the area of the lamp mounting opening 21 a thickness of 3 mm. The inner edge 22a1, the edge 22 on the Reflector inside 20a, and the outer edge 22a2, the edge 22 on the Limited reflector outside 20b, therefore have a distance of 3 mm. The Recesses 14f in the outside of the carrier sleeve 14b are at the same height the outer edge 22a2 of the opening edge 21 is arranged. In the area of the two aforementioned the edge 22 of the lamp mounting opening has other reference lugs 14c 21 of the reflector 20 each have a prismatic contact surface 22a. The outside the support sleeve 14b of the lamp base lies on these two prismatic ones Contact surfaces 22a with a press fit. The clamping effect is by means of Pressure spring 14d generated. The contact surfaces between the support sleeve 14b and contact surfaces 22a are located below the reference lugs 14c and above the depressions 14f. Because of the depressions 14f, the one that may have a burr is Outer edge 22a2 of the edge 22 of the mounting opening 21 without contact to the lamp base and in particular to the support sleeve 14b.

Die Erfindung beschränkt sich nicht auf das oben näher erläuterte Ausführungsbeispiel. Beispielsweise kann die Trägerhülse 14b statt der beiden Vertiefungen 14f auch eine ringsegmentförmge Nut in ihrer Außenwand besitzen, die im Bereich der prismatischen Anlageflächen 22a auf gleicher Höhe mit der Außenkante 22a2 angeordnet ist. Anstelle von Vertiefungen 14f kann die Trägerhülse 14b auch Aussparungen, das heißt Durchbrüche in der Trägerhülsenwand, besitzen.The invention is not limited to the exemplary embodiment explained in more detail above. For example, the carrier sleeve 14b instead of the two depressions 14f also have a ring segment-shaped groove in its outer wall, which in the area of prismatic contact surfaces 22a arranged at the same level with the outer edge 22a2 is. Instead of depressions 14f, the carrier sleeve 14b can also have cutouts, that is, have openings in the carrier sleeve wall.

Claims (2)

Elektrische Lampe mit einem Lampensockel, einem lichtdurchlässigen Lampenkolben (10) und mit mindestens einem vom Lampenkolben (10) umschlossenen Leuchtmittel (11), wobei der Lampensockel ein metallisches Halterteil (14a) aufweist, in dem der Lampenkolben (10) fixiert ist, der Lampensockel eine mit dem Halterteil (14a) verbundene ringförmige metallische Trägerhülse (14b) und ein mit den elektrischen Anschlüssen (16, 17) der Lampe versehenes Kunststoffsockeheil (15) besitzt, in dem die Trägerhülse (14b) verankert ist, die Trägerhülse (14b) drei in einer gemeinsamen, senkrecht zur Ringachse angeordneten Ebene liegende Referenznasen (14c) besitzt, wobei die Referenznasen (14c) zum Eingreifen in eine als Lampenfassung ausgebildete Öffnung (21) eines Reflektors (20) dienen, die ringförmige Trägerhülse (14b) eine radial nach außen wirkende Andruckfeder (14d) besitzt, die zur Fixierung der Lampe in der als Lampenfassung ausgebildeten Öffnung (21) des Reflektors (20) dient, wobei die Andruckfeder (14d) unterhalb einer ersten Referenznase (14c) angeordnet ist, dadurch gekennzeichnet, daß die ringförmige Trägerhülse (14b) auf ihrer Außenseite, unterhalb der zweiten und dritten Referenznase (14c) jeweils eine von den Referenznasen (14c) beabstandete Vertiefung (14f) oder Aussparung besitzt.Electric lamp with a lamp base, a translucent lamp bulb (10) and with at least one lamp (11) enclosed by the lamp bulb (10), wherein the lamp base has a metallic holder part (14a) in which the lamp bulb (10) is fixed, the lamp base has an annular metallic support sleeve (14b) connected to the holder part (14a) and a plastic sock (15) provided with the electrical connections (16, 17) of the lamp, in which the support sleeve (14b) is anchored, the carrier sleeve (14b) has three reference lugs (14c) lying in a common plane perpendicular to the ring axis, the reference lugs (14c) serving to engage in an opening (21) of a reflector (20) designed as a lamp holder, the annular support sleeve (14b) has a radially outwardly acting pressure spring (14d) which is used to fix the lamp in the opening (21) of the reflector (20) designed as a lamp socket, the pressure spring (14d) below a first reference lug (14c ) is arranged, characterized in that the annular carrier sleeve (14b) has on its outside, below the second and third reference lugs (14c) in each case a recess (14f) or recess spaced from the reference lugs (14c). Beleuchtungsvorrichtung mit einer elektrischen Lampe nach Anspruch 1 und mit einem Reflektor (20), wobei der Reflektor (20) eine dem Lampenkolben (10) zugewandte Reflektorinnenseite (20a) und eine vom Lampenkolben (10) abgewandte Reflektoraußenseite (20b) sowie eine Lichtaustrittsöffnung und eine als Lampenfassung ausgebildete Montage-Öffnung (21) besitzt, die Montage-Öffnung (21) durch einen Rand (22) begrenzt wird, der auf der Reflektorinnenseite (20a) eine Innenkante (22a1) und auf der Reflektoraußenseite (20b) eine Außenkante (22a2) aufweist, die Referenznasen (14c) auf der Reflektorinnenseite (20a) am Reflektor (20) anliegen, die Andruckfeder (14d) am Rand (22) der Montage-Öffnung (21) anliegt, die Trägerhülse (14b) unterhalb der zweiten und dritten Referenznase (14c) am Rand (22) der Montage-Öffnung (21) anliegt, dadurch gekennzeichnet, daß die Vertiefungen (14f) oder Aussparungen auf gleicher Höhe mit der Außenkante (22a2) angeordnet sind.Lighting device with an electric lamp according to claim 1 and with a reflector (20), wherein the reflector (20) has an inside reflector (20a) facing the lamp bulb (10) and an outside reflector (20b) facing away from the lamp bulb (10) as well as a light exit opening and a mounting opening (21) designed as a lamp holder, the mounting opening (21) is delimited by an edge (22) which has an inner edge (22a1) on the inside of the reflector (20a) and an outer edge (22a2) on the outside of the reflector (20b), the reference lugs (14c) rest on the inside of the reflector (20a) on the reflector (20), the pressure spring (14d) abuts the edge (22) of the mounting opening (21), the carrier sleeve (14b) lies below the second and third reference lugs (14c) on the edge (22) of the assembly opening (21), characterized in that the depressions (14f) or recesses are arranged at the same height as the outer edge (22a2).
EP99123579A 1998-12-01 1999-11-26 Electric lamp and lighting device with such an electric lamp Expired - Lifetime EP1006550B1 (en)

Applications Claiming Priority (2)

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DE19855265A DE19855265A1 (en) 1998-12-01 1998-12-01 Electric lamp and lighting device with such an electric lamp
DE19855265 1998-12-01

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EP (1) EP1006550B1 (en)
JP (1) JP2000173321A (en)
KR (1) KR100621263B1 (en)
CN (1) CN100364036C (en)
AT (1) ATE242915T1 (en)
CA (1) CA2290890A1 (en)
DE (2) DE19855265A1 (en)
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HU222330B1 (en) 2003-06-28
ES2201623T3 (en) 2004-03-16
DE59905918D1 (en) 2003-07-17
HUP9904449A3 (en) 2000-10-30
KR100621263B1 (en) 2006-09-06
HUP9904449A2 (en) 2000-09-28
EP1006550B1 (en) 2003-06-11
CN1260584A (en) 2000-07-19
ATE242915T1 (en) 2003-06-15
TW429392B (en) 2001-04-11
KR20000047815A (en) 2000-07-25
CN100364036C (en) 2008-01-23
CA2290890A1 (en) 2000-06-01
HU9904449D0 (en) 2000-02-28
US6328455B1 (en) 2001-12-11
DE19855265A1 (en) 2000-06-21
JP2000173321A (en) 2000-06-23

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