EP1196941A1 - Lampe a halogene - Google Patents

Lampe a halogene

Info

Publication number
EP1196941A1
EP1196941A1 EP01956283A EP01956283A EP1196941A1 EP 1196941 A1 EP1196941 A1 EP 1196941A1 EP 01956283 A EP01956283 A EP 01956283A EP 01956283 A EP01956283 A EP 01956283A EP 1196941 A1 EP1196941 A1 EP 1196941A1
Authority
EP
European Patent Office
Prior art keywords
filament
halogen
incandescent lamp
incandescent
lamp according
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
EP01956283A
Other languages
German (de)
English (en)
Other versions
EP1196941B1 (fr
Inventor
Klaus-Peter Knorr
Klaus Wittmann
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
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 Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Publication of EP1196941A1 publication Critical patent/EP1196941A1/fr
Application granted granted Critical
Publication of EP1196941B1 publication Critical patent/EP1196941B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/02—Incandescent bodies
    • H01K1/14—Incandescent bodies characterised by the shape
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/38—Seals for leading-in conductors
    • 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

Definitions

  • the invention relates to a halogen incandescent lamp for motor vehicle headlights according to the preamble of patent claim 1.
  • Halogen incandescent lamps for headlights of motor vehicles with a vehicle electrical system voltage of 12 volts are commercially available. These halogen incandescent lamps have a power consumption of approx. 50-100 watts and have at least one incandescent filament, the incandescent filament being simply coiled and adapted to an operating voltage of approximately 12 volts.
  • Halogen bulbs for motor vehicle headlights with a nominal vehicle electrical system voltage of 24 volts are also commercially available. These halogen incandescent lamps have a power consumption of between 50 watts and 100 and have at least one incandescent filament, the incandescent filament being doubly coiled and designed for an operating voltage of at least 20 volts.
  • the single-spiral ends of the double-spiral filament are provided with insertion pins. Instead of an insertion pin, a remainder of the core wire can also remain in each single-coiled filament end, which was only etched out of the light-emitting, double-coiled area of the filament, but not from its single-ended ends using acid.
  • the secondary winding of this double-wound filament has very few turns. The lighting that can be achieved in this way has an inhomogeneous effect.
  • the at least one incandescent filament is designed as a single coil, the dimensions and / or geometry of which are matched to an operating voltage of at least 20 volts, the length of the single coil being a value in the range from 4.0 mm to 6.5 mm has.
  • the single winding of the halogen incandescent lamp according to the invention has a number of turns three to four times higher and a significantly smaller distance between the individual turns than the secondary winding of the double-coiled incandescent filament of the previously conventional halogen incandescent lamps for headlights of motor vehicles with a vehicle electrical system nominal voltage of 24 volts.
  • the single filament of the halogen incandescent lamp according to the invention is advantageously equipped with at least 20 turns, which are distributed uniformly over the length of the single filament, in order to achieve the most homogeneous illumination possible.
  • the halogen incandescent lamp according to the invention due to the higher operating voltage, has a single filament as a filament, which consists of a thinner and approximately twice as long wire as the single filament of the 12 halogen filament - lamp is made.
  • the filament ends of the halogen lamps according to the invention are Incandescent lamp advantageously provided with proppants.
  • Support coils or tubes made of molybdenum foil or molybdenum tape, which enclose the uncoiled ends of the single-purpose egg, are preferably suitable as support means.
  • the single winding of the halogen incandescent lamp according to the invention has at least 20 turns and an outside diameter between 1.4 mm and 2.0 mm, so that the halogen incandescent lamp according to the invention, despite the comparatively long wire used to produce the incandescent filament, has a spatially compact single winding Has filament.
  • the diameter of the wire used for the production of incandescent filaments is advantageously between 0, 11 mm and 0.14 mm, on the one hand to adapt the filament resistance to the desired power consumption of the halogen incandescent lamp according to the invention and on the other hand to enable a spatially compact single filament as an incandescent filament.
  • Figure 1 is a schematic side view of a halogen lamp according to the invention for a motor vehicle headlight with a single helix, axially arranged filament
  • Figure 2 is a plan view of an axial coil according to the first embodiment of the invention in a schematic representation
  • Figure 3 is a plan view of a transverse spiral according to the second embodiment of the invention in a schematic representation
  • FIG. 4 shows a schematic top view of a single winding according to a third exemplary embodiment of the invention
  • the halogen incandescent lamp according to the first exemplary embodiment has an essentially cylindrical lamp vessel 1 with a gas-tightly closed squeeze foot 2, through which two power supply wires 3, 4 are passed for the filament 5 arranged inside the lamp vessel 1 in the axial direction.
  • the pinch foot 2 is fixed in the lamp base 6, which is equipped with two contact lugs 7 for supplying voltage to the incandescent filament 5.
  • Figure 1 shows schematically the structure of this halogen lamp. It is a halogen incandescent lamp for a motor vehicle headlight with a power consumption of approximately 70 watts, which is intended for operation on a nominal electrical system voltage of 24 volts.
  • the incandescent filament 5 is designed as a single winding which has a length of approximately 5.6 mm ⁇ 0.2 mm, an outer diameter of approximately 1.7 mm and 26 turns.
  • the above information relates to the wound area of the incandescent filament 5 which is responsible for the light emission, without taking into account the uncoiled ends 5a of the incandescent filament 5.
  • the tungsten filament wire used for producing the simple thread 5 has a diameter of 0.13 mm on.
  • the effective length of the helix wire that is to say the length of the helix wire forming the wound region of the single-thread 5 is approximately 124.8 mm.
  • the uncoiled ends 5 a of the filament 5 are each provided with a coating filament 8 to improve the resistance to vibrations and to support the filament 5.
  • the coating schin 8 enclose the respective uncoiled end 5 a with a press fit. They preferably extend over most of the respective uncoiled end 5 a.
  • Figure 2 the structure of the filament 5 according to the first embodiment is shown schematically.
  • the incandescent filament 5 ' is designed as a transverse, that is to say perpendicularly to the lamp axis, single coil which has a length of approximately 5.2 mm ⁇ 0.2 mm, an outer diameter of approximately 1.9 mm and 23 Has turns.
  • the aforementioned information relates to the wound area of the filament 5 'responsible for the light emission, without taking into account the uncoiled ends 5a' of the filament 5 '.
  • the spiral wire used to produce the single-thread ice 5 ' made of tungsten has a diameter of 0.13 mm.
  • the effective length of the helix wire is approximately 124.9 mm.
  • the uncoiled ends 5a 'of the filament 5' are each provided with a coating filament 8 'to improve the resistance to vibrations and to support the filament 5'.
  • the coating coils 8 ' enclose the respective uncoiled end 5a' with a clamp fit. They preferably extend over most of the respective uncoiled end 5a '.
  • Figure 3 the structure of the filament 5 'according to the second embodiment is shown schematically.
  • Both single coils 5, 5 'described in more detail above are adapted due to their dimensions and geometry to an operating voltage of approximately 24 volts and a power consumption of approximately 70 watts.
  • the single helix 5 "according to the third exemplary embodiment shown in FIG. 4 differs from the single helices of the two exemplary embodiments explained above only in that the uncoiled ends 5a" are each surrounded by a tube 8 "made of molybdenum tape with a clamp fit.
  • the molybdenum - Danube tubes 8 each extend over the major part of the corresponding uncoiled end 5a".
  • the molybdenum tubes 8 "facilitate the welding of the helix ends to the current supply wires 3, 4, which are also made of molybdenum.
  • the invention is not limited to the exemplary embodiments explained in more detail above.
  • the coating coils 8, 8 'or molybdenum tubes 8 " are only required if particularly high demands are placed on the vibration resistance.
  • other support means for the incandescent filament can also be used in this case become.
  • the power supply wires 3, 4 can be made correspondingly thick and the associated uncoiled ends 5a, 5a' of the incandescent coils 5, 5 'can be made correspondingly short, so that the power supply wires 3, 4 already guarantee high resistance to vibrations.

Landscapes

  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Resistance Heating (AREA)
  • Insulated Conductors (AREA)

Abstract

L'invention concerne une lampe à halogène pour phares de véhicules automobiles, laquelle lampe présente une consommation électrique comprise entre 50 Watt et 100 Watt et au moins un filament boudiné. Selon la présente invention, ce filament boudiné (5) est conçu comme un filament enroulé en spirale simple, dont les mesures et/ou la géométrie sont adaptés à une tension d'exploitation d'au moins 20 Volt, la longueur du filament en spirale simple étant limitée à une plage comprise entre 4,0 mm et 6,5 mm.
EP01956283A 2000-07-19 2001-06-22 Lampe a halogene Expired - Lifetime EP1196941B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10035401 2000-07-19
DE10035401A DE10035401B4 (de) 2000-07-19 2000-07-19 Halogenglühlampe für Kraftfahrzeugscheinwerfer
PCT/DE2001/002308 WO2002007188A1 (fr) 2000-07-19 2001-06-22 Lampe a halogene

Publications (2)

Publication Number Publication Date
EP1196941A1 true EP1196941A1 (fr) 2002-04-17
EP1196941B1 EP1196941B1 (fr) 2007-11-07

Family

ID=7649642

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01956283A Expired - Lifetime EP1196941B1 (fr) 2000-07-19 2001-06-22 Lampe a halogene

Country Status (14)

Country Link
US (1) US20020135301A1 (fr)
EP (1) EP1196941B1 (fr)
JP (1) JP4989838B2 (fr)
KR (1) KR100855401B1 (fr)
CN (1) CN1220244C (fr)
AR (1) AR029735A1 (fr)
AT (1) ATE377840T1 (fr)
BR (1) BR0106983A (fr)
CA (1) CA2385282C (fr)
DE (2) DE10035401B4 (fr)
ES (1) ES2292606T3 (fr)
HU (1) HU226846B1 (fr)
TW (1) TW543078B (fr)
WO (1) WO2002007188A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2465134B1 (fr) * 2009-08-14 2016-02-17 OSRAM GmbH Ampoule halogène pour phare de véhicule

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006052951A1 (de) * 2006-11-09 2008-05-15 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Halogenglühlampe
DE102006052950A1 (de) * 2006-11-09 2008-05-15 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Halogenglühlampe
DE102007008147A1 (de) * 2007-02-19 2008-08-21 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Halogenglühlampe
DE102007029372A1 (de) * 2007-06-26 2009-01-08 Osram Gesellschaft mit beschränkter Haftung Wendel und Verfahren zur Herstellung einer Wendel
DE102012202081A1 (de) 2012-02-13 2013-08-14 Osram Gmbh Glühfaden für elektrische lampen und elektrische lampe sowie herstellungsverfahren für einen glühfaden

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7704774A (nl) * 1977-05-02 1978-11-06 Philips Nv Elektrische gloeilamp.
DE3786931T2 (de) * 1986-02-06 1994-02-24 Gte Prod Corp Scheinwerfer für Kraftfahrzeuge.
JP3168588B2 (ja) * 1991-02-07 2001-05-21 東芝ライテック株式会社 白熱電球
JP2860249B2 (ja) * 1994-04-08 1999-02-24 スタンレー電気株式会社 自動車用ハロゲン電球
JPH087846A (ja) * 1994-06-21 1996-01-12 Ushio Inc ハロゲン電球
JP3532011B2 (ja) * 1995-03-31 2004-05-31 ハリソン東芝ライティング株式会社 電球、車両用前照灯および車両
DE19538497C2 (de) * 1995-10-16 2000-03-09 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Verfahren zur Herstellung einer elektrischen Lampe
US5883468A (en) * 1997-07-24 1999-03-16 Osram Sylvania Inc. Tungsten halogen lamp with specific fill material, fill pressure, and filament coil parameters

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0207188A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2465134B1 (fr) * 2009-08-14 2016-02-17 OSRAM GmbH Ampoule halogène pour phare de véhicule

Also Published As

Publication number Publication date
KR100855401B1 (ko) 2008-08-29
JP4989838B2 (ja) 2012-08-01
DE10035401B4 (de) 2006-01-26
ATE377840T1 (de) 2007-11-15
DE50113226D1 (de) 2007-12-20
WO2002007188A1 (fr) 2002-01-24
EP1196941B1 (fr) 2007-11-07
DE10035401A1 (de) 2002-02-07
CA2385282A1 (fr) 2002-01-24
ES2292606T3 (es) 2008-03-16
JP2004504697A (ja) 2004-02-12
US20020135301A1 (en) 2002-09-26
AR029735A1 (es) 2003-07-10
HUP0203337A2 (en) 2003-02-28
HU226846B1 (en) 2009-12-28
CN1220244C (zh) 2005-09-21
TW543078B (en) 2003-07-21
KR20020047176A (ko) 2002-06-21
CA2385282C (fr) 2009-12-29
BR0106983A (pt) 2002-05-14
CN1386298A (zh) 2002-12-18

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