EP2106615B1 - Dipping cap comprising a filament - Google Patents
Dipping cap comprising a filament Download PDFInfo
- Publication number
- EP2106615B1 EP2106615B1 EP07847862.5A EP07847862A EP2106615B1 EP 2106615 B1 EP2106615 B1 EP 2106615B1 EP 07847862 A EP07847862 A EP 07847862A EP 2106615 B1 EP2106615 B1 EP 2106615B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- filament
- lamp
- dazzle device
- helix
- outgoing
- 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
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- 238000007598 dipping method Methods 0.000 title 1
- 238000003466 welding Methods 0.000 claims description 22
- 229910052736 halogen Inorganic materials 0.000 claims description 9
- 150000002367 halogens Chemical class 0.000 claims description 9
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 6
- 229910052750 molybdenum Inorganic materials 0.000 description 4
- 239000011733 molybdenum Substances 0.000 description 4
- 239000011888 foil Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000005350 fused silica glass Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K9/00—Lamps having two or more incandescent bodies separately heated
- H01K9/08—Lamps having two or more incandescent bodies separately heated to provide selectively different light effects, e.g. for automobile headlamp
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/26—Screens; Filters
Definitions
- the invention is based on a dimming cap with helix for two-filament lamps, which are used in particular in vehicle headlights.
- WO 98/38670 is a two-filament halogen incandescent lamp is known, which has a one side densely squeezed lamp bulb, the pinch seal is clamped in a holder part made of stainless steel. Within the lamp envelope are two filaments, which are connected via a total of three melted power supplies or molybdenum foils and associated power supply to a lamp base.
- a spiral outlet 8 extends to the weld 10, at which the filament outlet 8 with the transverse rib 4 is welded by projection welding.
- the distance between an exit of an in Fig. 1 not shown socket-side Wendelabgangs from the coil 2 and the weld 10 has the dimension A of 9.7 mm, while the distance between the outlet of the socket-side helical departure from the coil 1 and the end face of the welding flag 6 has the dimension B of 11.9 mm ,
- the anti-dazzle device shown which is used in particular for H4 lamps, is responsible for the cut-off line.
- the dimming cap 2 is made of molybdenum sheet.
- the object of the present invention is to provide a Abblendkappe with helix for a two-head lamp, in which a cost reduction, an accurate determination of the helical position and low line losses can be achieved.
- a dipped cap with helix for a two-filament lamp, wherein the dimension between an exit of a socket-side helix exit from the helix and the point at opposite to the socket-side helix exit arranged with the Abblendkappe welded helical departure between about 5.2 mm and smaller than 9, 7 mm, and wherein the dimension between the outlet of the socket-side helical departure from the helix and the end face of the anti-dazzle device, which is adjacent to the helical departure, at which the helical departure is welded to the anti-dazzle device, is between approximately 5.9 mm and smaller than 11, 9 mm.
- This can be implemented in terms of cost and quality optimized dimming, especially when the Abblendkappen are not responsible for the cut-off for vehicle headlamps.
- the anti-dazzle device be connected to the helical exit by projection welding. This allows a secure connection between the parts to be welded without a filler material and thus implement without the introduction of additional material.
- the weld boss on the projection for the projection welding in cross section has the shape of a ring portion, preferably at an angle of 90 °.
- the welding lug of the anti-dazzle device can be deformed in a simple manner by the introduction of a transverse rib, and an attachment of helical outlets in any relative position to the transverse rib can be implemented.
- a flat surface of the anti-dazzle device is connected to the helical outlet.
- the helical departure can extend parallel to the longitudinal axis of the helix and a uniform spacing of the helix from the bottom of the anti-dazzle device can be implemented.
- the anti-dazzle device with a coil for a halogen incandescent lamp is designed for a vehicle headlight, so that, for example, the use in daytime running lights is possible.
- the two-filament lamp is a two-filament headlamp, as in this way low beam and high beam or high beam and daytime running lights can be realized in a lamp.
- the two-filament lamp is a two-filament halogen lamp, since in this way a special light intensity with excellent quality of light can be implemented.
- a headlamp is provided with a lamp which has a Abblendkappe with helix, with an aperture for the light-dark boundary outside the lamp vessel of the two-filament lamp and in the limited space by the reflector is responsible.
- Fig. 2 shows a provided with a lamp base 20 halogen bulb 22 for a vehicle headlight.
- the halogen incandescent lamp 22 has a glassy, substantially cylindrical lamp vessel 24, in the interior of which two filaments 26, 28 aligned parallel to the lamp vessel axis are arranged, which serve, for example, to produce a high beam and a daytime running light or a high beam and a low beam.
- the filaments 26, 28 are formed, for example, as single or double turned tungsten wires.
- the helical outlets 30, 32 of the helix 26 and the helical outlets 34, 36 of the helix 28 are preferably wrapped with a molybdenum foil, which serves as a welding aid in welding the helical outlets to the power supply lines for the incandescent filament.
- a sealed end 38 of the lamp vessel 24 is anchored in the lamp base 20.
- the lamp vessel cap 40 facing away from the lamp cap 20 may be provided with an opaque coating 40.
- the incandescent filament 26, which is provided adjacent to the lamp vessel tip 40, is disposed adjacent to a shield plate 42 formed of molybdenum sheet metal.
- the dimming cap 42 and the filament 62 are in the illustrations of Fig. 3, 4 and 5 magnified highlighted.
- the filament outlet 30 of the incandescent filament 26 facing the opaque coating 40 is welded to the antiglare cap 42 in an edge region thereof, while the bottom of the trough-type antiglare cap 42 is welded to a current supply 44.
- the filament outlet 32 of the filament 26 and the filament outlet 34 of the filament 28 are welded to a power supply 46, while the filament outlet 36 of the filament 28 is welded to a power supply 48.
- the three power supply wires 44, 46, 48 are fixed via two fused quartz glass webs 50, so that the power supply 44, 46, 48 are arranged in a plane.
- the power supply lines 44, 46, 48 extend through the sealed end 38 of the lamp vessel 24 and are in electrical connection with the contact lug 52, 54, 56 on the lamp base 20.
- quartz glass molybdenum foils are provided in the pinch.
- the three contact lugs 52, 54, 56 protrude laterally with respect to the central axis of the lamp vessel 24 from the lamp base 20 and form the electrical connections of the halogen lamp.
- Fig. 3 shows the Abblendkappe 62, denoted by the reference numeral 42 in Fig. 2 only indicated schematically, in side view.
- the anti-dazzle device 62 has a trough-like section 64 which can be stabilized, for example, by at least one rib, not shown in the figures.
- the welding lug 6 is connected via a connecting bevel 66 of the trough-like portion 64 with the trough-like portion 64 and has a transverse rib 70, over which the helical outlet 30 of the incandescent filament 26 with the Abblendkappe 62 is welded.
- the spiral outlet 32 is not shown, but only the location of the exit of the socket-side helical outlet 32 from the coil 26th
- the distance of the welding point 72 of the helical departure 30 with the transverse rib 70 from this outlet of the base-side helical departure 32 from the helix 26 is designated A, while the distance between the end face 74 of the welding tail 68 from the exit of the socket-side helical departure 32 from the helix 26 with B. is designated.
- the measure of the distance of the outlet of the socket-side helical departure from the helix with respect to the base is referred to as e-dimension according to ECE R37.
- the distance measure A can be reduced from 9.7 mm to less than 9.5 mm, depending on the punching, bending and deep-drawing requirements, from the 9.7 mm known from the H4 lamp.
- the distance B decreases from the 11.9 mm known from the H4 lamp to less than 11.9 mm to 5.9 mm.
- the dimming cap 62 can be realized with a substantially smaller longitudinal dimension, so that a significant cost reduction due to the reduction of the amount of cap material used, for example molybdenum in the dimming cap with helix according to the present invention is recorded.
- the total resistance of the system is reduced, resulting in lower conduction losses. Furthermore, due to the reduced dimensions, a lower heat capacity is recorded, resulting in a faster starting of the lamp. The reduced dimensions also cause a higher vibration resistance.
- Fig. 4 shows a dimming cap 82 with coil 26 according to the second embodiment.
- the anti-dazzle device 82 differs in the welding tread 84 from the anti-dazzle device of the first embodiment.
- the welding lug 84 has a transverse rib 86, but in contrast to the transverse rib 70 of the first embodiment, which has the shape of a hollow cylinder halved on the longitudinal axis, has the shape of a hollow cylinder quartered along the longitudinal axis.
- the weld 88 is formed by projection welding.
- a smaller dimension B results from the end face 90 of the welding lug 84 for the outlet of the socket-side helical departure 32 from the helix 26, wherein the dimension B is equal to the dimension A, since the weld 88 is located on the end face 50.
- Fig. 5 shows a screening cap 92 according to the third embodiment, wherein the welding flag 94 has a flat surface 96.
- the helical outlet 30 rests on the surface 94 and is welded thereto.
- the weld 98 is disposed on the end face 100, so that also in the third embodiment, the dimensions A and B are the same.
- a dimming cap optimized for cost and quality can be obtained for an incandescent filament, by means of which a reduced longitudinal dimension of the lamp bulb 24 can be converted even with the same spacing of the filament as in the prior art.
- a dipped cap with a helix for a two-filament lamp is described.
- the dimension between an exit of a socket-side helical departure from the helix and the point at opposite to the socket-side helix exit arranged with the Abblendkappe welded helical departure between about 5.2 mm and smaller than 9.7 mm and the dimension between the exit the socket-side helical departure from the helix and the end face of the anti-dazzle device, which is adjacent to the helical departure, at which the helical outlet is welded to the anti-dazzle device, between about 5.9 mm and smaller than 11.9 mm.
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- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Description
Die Erfindung geht von einer Abblendkappe mit Wendel für Zweiwendellampen aus, die insbesondere bei Fahrzeugscheinwerfern zum Einsatz gelangen.The invention is based on a dimming cap with helix for two-filament lamps, which are used in particular in vehicle headlights.
Aus der Veröffentlichung
Eine weitere Fahrzeugscheinwerferlampe mit zwei Glühwendel ist aus dem Dokument
Die in
Der Abstand zwischen einem Austritt eines in
Die in
Die Aufgabe der vorliegenden Erfindung ist es, eine Abblendkappe mit Wendel für eine Zweiwendellampe vorzusehen, bei der eine Kostenverringerung, eine exakte Bestimmung der Wendellage und geringe Leitungsverluste erzielbar sind.The object of the present invention is to provide a Abblendkappe with helix for a two-head lamp, in which a cost reduction, an accurate determination of the helical position and low line losses can be achieved.
Diese Aufgabe wird durch eine Abblendkappe mit Wendel nach Anspruch 1 gelöst.This object is achieved by a dimming cap with coil according to
Besonders vorteilhafte Ausgestaltungen finden sich in den abhängigen Ansprüchen.Particularly advantageous embodiments can be found in the dependent claims.
Es wird eine Abblendkappe mit Wendel für eine Zweiwendellampe vorgesehen, wobei die Abmessung zwischen einem Austritt eines sockelseitigen Wendelabgangs aus der Wendel und dem Punkt am entgegengesetzt zu dem sockelseitigen Wendelabgang angeordneten, mit der Abblendkappe verschweißten Wendelabgang zwischen ungefähr 5,2 mm und kleiner als 9,7 mm beträgt und wobei die Abmessung zwischen dem Austritt des sockelseitigen Wendelabgang aus der Wendel und der Stirnfläche der Abblendkappe, die benachbart zu dem Wendelabgang liegt, an dem der Wendelabgang mit der Abblendkappe verschweißt ist, zwischen ungefähr 5,9 mm und kleiner als 11,9 mm beträgt. Damit kann eine in Bezug auf Kosten und die Qualität optimierte Abblendkappe umgesetzt werden, insbesondere wenn die Abblendkappen nicht für die Hell-Dunkel-Grenze bei Fahrzeugscheinwerfern verantwortlich sind.A dipped cap with helix is provided for a two-filament lamp, wherein the dimension between an exit of a socket-side helix exit from the helix and the point at opposite to the socket-side helix exit arranged with the Abblendkappe welded helical departure between about 5.2 mm and smaller than 9, 7 mm, and wherein the dimension between the outlet of the socket-side helical departure from the helix and the end face of the anti-dazzle device, which is adjacent to the helical departure, at which the helical departure is welded to the anti-dazzle device, is between approximately 5.9 mm and smaller than 11, 9 mm. This can be implemented in terms of cost and quality optimized dimming, especially when the Abblendkappen are not responsible for the cut-off for vehicle headlamps.
Es wird bevorzugt, dass die Abblendkappe mit dem Wendelabgang durch Buckelschweißen verbunden ist. Dadurch lässt sich eine sichere Verbindung zwischen den zu verschweißenden Teilen ohne einen Zusatzwerkstoff und somit ohne das Einbringen von zusätzlichem Material umsetzen.It is preferred that the anti-dazzle device be connected to the helical exit by projection welding. This allows a secure connection between the parts to be welded without a filler material and thus implement without the introduction of additional material.
Es wird bevorzugt, wenn der Schweißbuckel an der Abblendkappe für das Buckelschweißen im Querschnitt die Form eines Ringabschnitts, vorzugsweise mit einem Winkel von 90°, aufweist. Somit ist die Schweißfahne der Abblendkappe durch das Einbringen einer Querrippe in einfacher Weise umformbar und kann ein Anbringen von Wendelabgängen in beliebiger Relativlage zur Querrippe umgesetzt werden.It is preferred if the weld boss on the projection for the projection welding in cross section has the shape of a ring portion, preferably at an angle of 90 °. Thus, the welding lug of the anti-dazzle device can be deformed in a simple manner by the introduction of a transverse rib, and an attachment of helical outlets in any relative position to the transverse rib can be implemented.
In einer bevorzugten Ausführung ist eine ebene Fläche der Abblendkappe mit dem Wendelabgang verbunden. Auf diese Weise kann sich der Wendelabgang parallel zur Längsachse der Wendel erstrecken und kann ein gleichmäßiger Abstand der Wendel vom Boden der Abblendkappe umgesetzt werden.In a preferred embodiment, a flat surface of the anti-dazzle device is connected to the helical outlet. In this way, the helical departure can extend parallel to the longitudinal axis of the helix and a uniform spacing of the helix from the bottom of the anti-dazzle device can be implemented.
In einer erfindungsgemäßen Weiterbildung ist die Abblendkappe mit Wendel für eine Halogenglühlampe für einen Fahrzeugscheinwerfer ausgebildet, so dass beispielsweise der Einsatz bei Tagfahrlichtleuchten möglich ist.In a development of the invention, the anti-dazzle device with a coil for a halogen incandescent lamp is designed for a vehicle headlight, so that, for example, the use in daytime running lights is possible.
Ferner wird bevorzugt, wenn die Zweiwendellampe eine Zweiwendelscheinwerferlampe ist, da auf diese Weise Abblendlicht und Fernlicht oder Fernlicht und Tagfahrlicht in einer Lampe realisierbar sind.It is further preferred if the two-filament lamp is a two-filament headlamp, as in this way low beam and high beam or high beam and daytime running lights can be realized in a lamp.
Es wird ferner bevorzugt, wenn die Zweiwendellampe eine Zweiwendelhalogenlampe ist, da auf diese Weise eine besondere Lichtstärke bei hervorragender Lichtqualität umsetzbar ist.It is further preferred if the two-filament lamp is a two-filament halogen lamp, since in this way a special light intensity with excellent quality of light can be implemented.
In einer Weiterbildung wird ein Scheinwerfer mit Lampe vorgesehen, die eine Abblendkappe mit Wendel aufweist, wobei eine Blende für die Hell-Dunkel-Grenze außerhalb des Lampengefäßes der Zweiwendellampe und in dem durch den Reflektor begrenzten Raum verantwortlich ist. Damit wird dem Umstand Rechnung getragen, dass die bevorzugten Abmaße an der Baugruppe aus Abblendkappe und Wendel bei Lampen dann besonders gut umsetzbar sind, wenn die Hell-Dunkel-Grenze durch eine mechanisch betätigte Blende im Innenraum des Fahrzeugsscheinwerfers realisiert wird. Im Ergebnis können das Tagfahrlicht und das Fernlicht durch die zwei Wendel der Lampe erzeugt werden, während das Abblendlicht über die Blende erzeugt wird.In a further development, a headlamp is provided with a lamp which has a Abblendkappe with helix, with an aperture for the light-dark boundary outside the lamp vessel of the two-filament lamp and in the limited space by the reflector is responsible. This takes into account the fact that the preferred dimensions of the assembly of dimming cap and coil in lamps are particularly well implemented when the cut-off line is realized by a mechanically operated aperture in the interior of the vehicle headlight. As a result, the daytime running light and the high beam can be generated by the two filaments of the lamp while producing the low beam through the aperture.
Im Folgenden soll die Erfindung anhand von drei Ausführungsbeispielen näher erläutert werden. Die Figuren zeigen:
- Fig. 1
- eine Abblendkappe mit Wendel nach dem Stand der Technik,
- Fig. 2
- eine mit Lampensockel versehene Halogenglühlampe für einen Fahrzeugscheinwerfer, bei dem die vorliegende Erfindung einsetzbar ist,
- Fig. 3
- eine Abblendkappe mit Wendel entsprechend dem ersten Ausführungsbeispiel,
- Fig. 4
- eine Abblendkappe mit Wendel entsprechend dem zweiten Ausführungsbeispiel, und
- Fig. 5
- eine Abblendkappe mit Wendel entsprechend dem dritten Ausführungsbeispiel.
- Fig. 1
- a prior art anti-dazzle device with a helix,
- Fig. 2
- a lamp-provided halogen incandescent lamp for a vehicle headlight, in which the present invention can be used,
- Fig. 3
- a dimming cap with helix according to the first embodiment,
- Fig. 4
- a dimming cap with a helix according to the second embodiment, and
- Fig. 5
- a dimming cap with a helix according to the third embodiment.
Die Halogenglühlampe 22 weist ein gläsernes, im Wesentlichen zylindrisches Lampengefäß 24 auf, in dessen Innenraum zwei parallel zur Lampengefäßachse ausgerichtete Glühwendeln 26, 28 angeordnet sind, die beispielsweise zur Erzeugung eines Fernlichts und eines Tagfahrlichts oder eines Fernlichts und eines Abblendlichts dienen. Die Glühwendeln 26, 28 sind beispielsweise als einfach oder doppelt gewendete Wolframdrähte ausgebildet.The halogen
Die Wendelabgänge 30, 32 der Wendel 26 und die Wendelabgänge 34, 36 der Wendel 28 sind bevorzugt mit einer Molybdänfolie umwickelt, die als eine Schweißhilfe beim Verschweißen der Wendelabgänge mit den Stromzuführungen für die Glühwendel dient. Ein abgedichtetes Ende 38 des Lampengefäßes 24 ist in dem Lampensockel 20 verankert. Die vom Lampensockel 20 abgewandte Lampengefäßkuppe 40 kann mit einer lichtundurchlässigen Beschichtung 40 versehen sein. Die Glühwendel 26, die benachbart zur Lampengefäßkuppe 40 vorgesehen ist, ist benachbart zu einer aus Molybdänblech geformten Abblendkappe 42 angeordnet.The
Die Abblendkappe 42 und die Glühwendel 62 sind in den Darstellungen der
Der zur lichtundurchlässigen Beschichtung 40 weisende Wendelabgang 30 der Glühwendel 26 ist mit der Abblendkappe 42 in einem Randbereich von dieser verschweißt, während der Boden der wannenartigen Abblendkappe 42 mit einer Stromzuführung 44 verschweißt ist. Der Wendelabgang 32 der Glühwendel 26 und der Wendelabgang 34 der Glühwendel 28 sind mit einer Stromzuführung 46 verschweißt, während der Wendelabgang 36 der Glühwendel 28 mit einer Stromzuführung 48 verschweißt ist.The
Die drei Stromzuführungsdrähte 44, 46, 48 sind über zwei miteinander verschmolzene Quarzglasstege 50 fixiert, so dass die Stromzuführung 44, 46, 48 in einer Ebene angeordnet sind. Bei der Verwendung von Hartglas verlaufen die Stromzuführungen 44, 46, 48 durch das abgedichtete Ende 38 des Lampengefäßes 24 und sind mit Kontaktfahne 52, 54, 56 am Lampensockel 20 in elektrischer Verbindung. In Quarzglas sind Molybdänfolien in der Quetschung vorgesehen. Die drei Kontaktfahnen 52, 54, 56 ragen in Bezug auf die Mittelachse des Lampengefäßes 24 aus dem Lampensockel 20 seitlich heraus und bilden die elektrischen Anschlüsse der Halogenlampe.The three
Nachfolgend wird die Gestaltung der Abblendkappe mit Wendeln, beispielsweise für eine vorstehend beschriebene Zweiwendellampe, in Bezug auf das erste Ausführungsbeispiel in
Die Abblendkappe 62 weist einen wannenartigen Abschnitt 64 auf, der beispielsweise durch zumindest eine in den Fig. nicht dargestellte Rippe stabilisiert werden kann. Die Schweißfahne 6 ist über eine Anschlussschräge 66 des wannenartigen Abschnitts 64 mit dem wannenartigen Abschnitt 64 verbunden und hat eine Querrippe 70, über die der Wendelabgang 30 der Glühwendel 26 mit der Abblendkappe 62 verschweißbar ist. In
Der Abstand der Schweißstelle 72 des Wendelabgangs 30 mit der Querrippe 70 von diesem Austritt des sockelseitigen Wendelabgangs 32 aus der Wendel 26 ist mit A bezeichnet, während der Abstand der Stirnfläche 74 der Schweißfahne 68 von dem Austritt des sockelseitigen Wendelabgangs 32 aus der Wendel 26 mit B bezeichnet ist. Das Maß für den Abstand des Austritts des sockelseitigen Wendelabgangs aus der Wendel in Bezug auf den Sockel wird entsprechend ECE R37 als e-Maß bezeichnet. Das Abstandsmaß A kann in Abhängigkeit von den stanz-, biege-, und tiefziehtechnischen Anforderungen von den von der H4-Lampe bekannten 9,7 mm auf unter 9,7 mm bis zu 5,2 mm verringert werden. Durch Verkürzung des Endabschnitts der Schweißfahne 68 verringert sich das Abstandsmaß B von den von der H4-Lampe bekannten 11,9 mm auf unter 11,9 mm bis zu 5,9 mm.The distance of the
Im Ergebnis kann die Abblendkappe 62 mit wesentlich geringerer Längsabmessung realisiert werden, so dass auf Grund der Verringerung der Menge des verwendeten Kappenwerkstoffs, beispielsweise Molybdän, eine deutliche Kostenverringerung bei der Abblendkappe mit Wendel entsprechend der vorliegenden Erfindung zu verzeichnen ist.As a result, the
Da der mitleuchtende Wendelabgang 30 verkürzt werden kann, liegt weniger parasitäres Licht vor und können geringere Biegemomente beim Schweißen auftreten, so dass die Lage der Glühwendel 26 exakter vorher bestimmbar ist.Since the
Auf Grund des kürzeren Wendelabgangs 30 und der verringerten Abmessungen der Abblendkappe 62 verringert sich der Gesamtwiderstand des Systems und es ergeben sich dadurch geringere Leitungsverluste. Ferner ist auf Grund der verringerten Abmessungen eine geringere Wärmekapazität zu verzeichnen, so dass sich ein schnelleres Anlaufen der Lampe ergibt. Die verringerten Abmessungen bewirken darüber hinaus eine höhere Vibrationsfestigkeit.Due to the
Die Abblendkappe 82 unterscheidet sich in der Schweißfahne 84 von der Abblendkappe des ersten Ausführungsbeispiels. Die Schweißfahne 84 weist eine Querrippe 86 auf, hat jedoch im Unterschied zur Querrippe 70 des ersten Ausführungsbeispiels, die die Form eines an der Längsachse halbierten Hohlzylinders aufweist, im Querschnitt die Form eines an der Längsachse geviertelten Hohlzylinders. Wie auch beim ersten Ausführungsbeispiel ist die Schweißstelle 88 über Buckelschweißen ausgebildet.The
Da auf einen Teil der Längsabmessung der Schweißfahne aus dem ersten Ausführungsbeispiel beim zweiten Ausführungsbeispiel verzichtet werden kann, ergibt sich eine geringere Abmessung B von der Stirnfläche 90 der Schweißfahne 84 zum Austritt des sockelseitigen Wendelabgangs 32 aus der Wendel 26, wobei die Abmessung B gleich der Abmessung A ist, da sich die Schweißstelle 88 an der Stirnfläche 50 befindet.
Mit der vorliegenden Erfindung entsprechend einem der drei Ausführungsbeispiele kann eine auf Kosten und Qualität optimierte Abblendkappe für eine Glühwendel erhalten werden, durch die auch bei gleichem Abstand der Wendel wie beim Stand der Technik eine verringerte Längsabmessung des Lampenkolbens 24 umsetzbar ist.With the present invention according to one of the three exemplary embodiments, a dimming cap optimized for cost and quality can be obtained for an incandescent filament, by means of which a reduced longitudinal dimension of the
Es wird eine Abblendkappe mit Wendel für eine Zweiwendellampe beschrieben. Bei dieser sind die Abmessung zwischen einem Austritt eines sockelseitigen Wendelabgangs aus der Wendel und dem Punkt am entgegengesetzt zu dem sockelseitigen Wendelabgang angeordneten, mit der Abblendkappe verschweißten Wendelabgang, zwischen ungefähr 5,2 mm und kleiner als 9,7 mm und die Abmessung zwischen dem Austritt des sockelseitigen Wendelabgangs aus der Wendel und der Stirnfläche der Abblendkappe, die benachbart zu dem Wendelabgang liegt, an dem der Wendelabgang mit der Abblendkappe verschweißt ist, zwischen ungefähr 5,9 mm und kleiner als 11,9 mm.A dipped cap with a helix for a two-filament lamp is described. In this case, the dimension between an exit of a socket-side helical departure from the helix and the point at opposite to the socket-side helix exit arranged with the Abblendkappe welded helical departure, between about 5.2 mm and smaller than 9.7 mm and the dimension between the exit the socket-side helical departure from the helix and the end face of the anti-dazzle device, which is adjacent to the helical departure, at which the helical outlet is welded to the anti-dazzle device, between about 5.9 mm and smaller than 11.9 mm.
Claims (8)
- Anti-dazzle device (42) with a filament (26) for a two-filament lamp, the dimension between a point at which a base-side outgoing filament end (32) emerges from the filament (26) and the point on the outgoing filament end (30) which is arranged opposite the base-side outgoing filament end (30) and is welded to the anti-dazzle device (42) being between approximately 5.2 mm and less than 9.7 mm, and the dimension between the point at which the base-side outgoing filament end (32) emerges from the filament (26) and the end face (74) of the anti-dazzle device (42), which is adjacent to the outgoing filament end (30), at which the outgoing filament end is welded to the anti-dazzle device, being between approximately 5.9 mm and less than 11.9 mm.
- Anti-dazzle device with a filament according to Claim 1, wherein the anti-dazzle device (42) is connected to the outgoing filament end (30) by means of projection welding.
- Anti-dazzle device with a filament according to Claim 2, wherein the transverse rib (70) for the welding projection on the anti-dazzle device (42) for the projection welding has, in cross section, the form of a ring segment, preferably with an angle of 90°.
- Anti-dazzle device with a filament according to Claim 1, wherein a planar face (96) of the anti-dazzle device is connected to the outgoing filament end (30).
- Anti-dazzle device with a filament according to one of the preceding claims, wherein the two-filament lamp is a two-filament vehicle headlamp.
- Anti-dazzle device with a filament according to one of the preceding claims, wherein the two-filament lamp is a two-filament halogen lamp.
- Lamp with an anti-dazzle device with a filament according to one or more of Claims 1 to 6.
- Headlamp with a lamp which has an anti-dazzle device with a filament according to one of the preceding claims, in which a shield for the light/dark boundary is arranged outside of the lamp vessel (24) of the two-filament lamp and in the space delimited by the reflector.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006060029A DE102006060029A1 (en) | 2006-12-19 | 2006-12-19 | Dimming cap with helix |
PCT/EP2007/063374 WO2008074640A2 (en) | 2006-12-19 | 2007-12-05 | Dipping cap comprising a filament |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2106615A2 EP2106615A2 (en) | 2009-10-07 |
EP2106615B1 true EP2106615B1 (en) | 2016-09-28 |
Family
ID=39431411
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07847862.5A Not-in-force EP2106615B1 (en) | 2006-12-19 | 2007-12-05 | Dipping cap comprising a filament |
Country Status (6)
Country | Link |
---|---|
US (1) | US8164240B2 (en) |
EP (1) | EP2106615B1 (en) |
JP (1) | JP5074517B2 (en) |
CN (1) | CN101536146B (en) |
DE (1) | DE102006060029A1 (en) |
WO (1) | WO2008074640A2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102610484A (en) * | 2012-02-24 | 2012-07-25 | 太仓康茂电子有限公司 | High-efficiency anti-glare vehicle light |
EP2994932B1 (en) | 2013-05-07 | 2016-09-14 | Koninklijke Philips N.V. | Automotive front lighting lamp with baffle |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1901179A1 (en) * | 1969-01-10 | 1970-08-06 | Patra Patent Treuhand | Two-filament halogen light bulb for motor vehicle headlights |
JPS59154760U (en) * | 1983-03-31 | 1984-10-17 | 松下電子工業株式会社 | incandescent light bulb for vehicle |
DE3525041C2 (en) * | 1985-07-13 | 1994-06-16 | Bosch Gmbh Robert | Low beam or fog lights for motor vehicles |
JP3681471B2 (en) * | 1996-06-04 | 2005-08-10 | 本田技研工業株式会社 | Automotive bulb |
EP0812004B1 (en) * | 1996-06-04 | 2003-07-09 | Honda Giken Kogyo Kabushiki Kaisha | Automobile lamp bulb |
DE19624688A1 (en) * | 1996-06-20 | 1998-01-02 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Shading device for a motor vehicle headlight lamp and manufacturing method for such a shading device |
DE19707245A1 (en) * | 1997-02-25 | 1998-08-27 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Method of making an electric light bulb |
DE102004053644A1 (en) * | 2004-11-03 | 2006-05-04 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Vehicle headlamp |
-
2006
- 2006-12-19 DE DE102006060029A patent/DE102006060029A1/en not_active Withdrawn
-
2007
- 2007-12-05 JP JP2009541961A patent/JP5074517B2/en not_active Expired - Fee Related
- 2007-12-05 US US12/448,282 patent/US8164240B2/en not_active Expired - Fee Related
- 2007-12-05 WO PCT/EP2007/063374 patent/WO2008074640A2/en active Application Filing
- 2007-12-05 EP EP07847862.5A patent/EP2106615B1/en not_active Not-in-force
- 2007-12-05 CN CN2007800422162A patent/CN101536146B/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US8164240B2 (en) | 2012-04-24 |
WO2008074640A3 (en) | 2009-03-26 |
CN101536146A (en) | 2009-09-16 |
DE102006060029A1 (en) | 2008-06-26 |
WO2008074640A2 (en) | 2008-06-26 |
EP2106615A2 (en) | 2009-10-07 |
CN101536146B (en) | 2011-11-30 |
JP5074517B2 (en) | 2012-11-14 |
JP2010514115A (en) | 2010-04-30 |
US20100090578A1 (en) | 2010-04-15 |
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