EP0835521A1 - Lampe electrique - Google Patents

Lampe electrique

Info

Publication number
EP0835521A1
EP0835521A1 EP97923738A EP97923738A EP0835521A1 EP 0835521 A1 EP0835521 A1 EP 0835521A1 EP 97923738 A EP97923738 A EP 97923738A EP 97923738 A EP97923738 A EP 97923738A EP 0835521 A1 EP0835521 A1 EP 0835521A1
Authority
EP
European Patent Office
Prior art keywords
electric lamp
cavity
lamp according
base
contact
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
EP97923738A
Other languages
German (de)
English (en)
Other versions
EP0835521B1 (fr
Inventor
Peter Helbig
Hermann Steiner
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 EP0835521A1 publication Critical patent/EP0835521A1/fr
Application granted granted Critical
Publication of EP0835521B1 publication Critical patent/EP0835521B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • H01J5/50—Means forming part of the tube or lamps for the purpose of providing electrical connection to it
    • H01J5/54—Means forming part of the tube or lamps for the purpose of providing electrical connection to it supported by a separate part, e.g. base
    • 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 an electric lamp according to the preamble of patent claim 1.
  • Such an electric lamp which corresponds to the preamble of claim 1, is disclosed, for example, in patent specification EP 0 172 529.
  • This document describes an electric incandescent lamp, in particular a motor vehicle headlight lamp, with a lamp bulb pinched on one side and a lamp base consisting of metal and plastic parts.
  • the pinch base of the lamp bulb is fixed in a metallic holding part of the lamp base, while the electrical connections of the lamp, which are designed as contact tabs, are accommodated in the base part made of plastic.
  • the lower part of the base has a cavity into which the power leads of the lamp, which lead out of the pinch foot, protrude.
  • These power supply lines are welded to one end of a contact lug in the cavity of the lower part of the base.
  • the cavity is filled with a potting compound. This seal ensures that no moisture that would corrode the reflector can penetrate into the headlight through the lamp base.
  • the electric lamps according to the invention have a lamp base which has a connection area which consists of an electrically insulating material and in which the electrical connections of the lamp are accommodated.
  • the connection area has a cavity into which one or more current leads protrude from the lamp bulb. There they are each connected in an electrically conductive manner to the end of an electrical connection designed as a contact lug.
  • the lamp base is sealed with the aid of one or more molded parts which are provided with feedthroughs for the power supply lines and which are made of a heat-resistant, elastic and slightly compressible material.
  • the molded part (s) are seated on at least one contact lug and press-fit against the wall delimiting the cavity and against the current supply line or cables.
  • the press fit is advantageously generated by means of the at least one contact lug, which exerts pressure on the molded part or parts.
  • the or the molded part is advantageously arranged in a recess that fits.
  • the pressure exerted by the at least one contact lug on the molded part (s) is thus distributed uniformly over the entire body of the molded part (s) and there is an optimal press fit of the molded part (s) on the adjacent cavity walls and on the or the performed power supplies achieved. In the preferred exemplary embodiment, this or 7 .
  • the Moldings advantageously made of silicone.
  • the use of several comparatively thick-walled, hose-like molded parts made of silicone has proven itself, each of which has a feedthrough for one of the current leads projecting into the cavity of the connection region.
  • the ends of the contact lugs protruding into the cavity are advantageously claw-like and hooked or clawed to the cavity wall.
  • a secure pre-fixing of the contact lugs, which are under mechanical stress, can be guaranteed even before the contact lugs are welded to the current leads.
  • the contact pads are each equipped with an opening for the power supply.
  • the feedthroughs for the contact lug or the contact lugs in the connection region of the base are advantageously each provided with insertion bevels which enable the contact lugs to be inserted obliquely with respect to the base axis and the contact lugs to subsequently be tilted into the base axis.
  • connection area is closed with the aid of a cover, which advantageously has a web extending into the cavity, which is seated on the surface of the contact lug or the contact lugs facing away from the molded part or parts.
  • This bridge gives the contact flags additional hold.
  • the connection area of the base advantageously consists of a heat-resistant plastic.
  • FIG. 2 shows a cross section through the connection region of the base of the lamp in accordance with the preferred exemplary embodiment from FIG. 1
  • Figure 3 is a plan view of the contact tab according to a second exemplary embodiment
  • FIG. 4 shows a side view of the contact lug according to the second exemplary embodiment from FIG. 3
  • the preferred exemplary embodiment of the electric lamp according to the invention is a single-filament halogen incandescent lamp which is intended for use in a motor vehicle headlight.
  • This lamp has a glass, essentially cylindrical lamp bulb 10 with a tightly squeezed lamp bulb end 10a, which is usually referred to as a squeezing foot 10a.
  • the dome 10b of the lamp bulb 10 is provided with a black, light-absorbing coating.
  • An incandescent filament 10c which is aligned parallel to the lamp bulb axis and is electrically conductively connected to current leads 11 led out of the squeezing foot 10a, serves as the light source.
  • the lamp bulb 10 is fixed with its pinch base 10a in a metallic holder part 12 designed as a fixed ring.
  • the fixing ring 12 is carried by an annular, metallic carrier sleeve 13.
  • the carrier sleeve 13 has four integrally formed welding tabs 13a, which are spot-welded or LASER-welded to the fixing ring 12.
  • the lamp base also has a plastic base part 14 provided with the electrical connections 15 of the lamp, in which the support sleeve 13 is anchored. This plastic base part 14 forms the connection area of the lamp base.
  • the Electrical connections 15 of the lamp are designed as contact lugs, which are each welded to one of the power supply lines 11.
  • the plastic base part 14 is an injection molded part into which the metallic support sleeve 13 is injected.
  • the plastic base part 14 has three integrally formed reference lugs 14a arranged equidistantly along a circumference, which are used for adjusting the filament 10c and for fastening the lamp in the reflector 17 of the headlight.
  • the reference noses 14a engaging in the opening 17a of the reflector 17, which is designed as a lamp socket, are each covered by a cover flap 13b molded onto the support sleeve 13 and angled therefrom, and thus shielded against the infrared radiation generated by the incandescent filament 10c.
  • the plastic base part 14 also has an annular, conical groove 14b, in which a sealing ring 16 made of rubber or silicone is arranged.
  • the sealing ring 16 lies against the outside of the reflector wall 17 and seals the opening 17a of the reflector which is designed as a lamp holder.
  • the inner diameter of the sealing ring 16 is matched to the conical groove 14b and varies linearly with the height of the sealing ring.
  • the three reference lugs 14a, the sealing ring 16 and a pressure spring 13c formed below the reference lug 14a on the metallic support sleeve 13c are used for the correct mounting of the lamp in the lamp holder 17a of the reflector.
  • the lamp base and the lamp holder 17a form a bayonet catch.
  • FIG. 2 Details of the plastic base part 14 forming the connection area are shown in FIG.
  • the squeezing foot 10a is not shown in FIG. 2 and the power supply lines 11 are shown only partially, that is, not in full length.
  • the plastic base part 14 has a cavity 18 into which the two current supply leads which are led out of the pinch foot 10a of the lamp bulb 10. stanchions 11 and the ends of two contact tabs 15 protrude.
  • the cavity 18 there are two tube-like molded parts 19 made of silicone, each of which is arranged in a recess 18a formed by the walls of the plastic base part 14 in a form-fitting manner.
  • the outer diameter of the tubular molded parts 19 is considerably larger than their inner diameter.
  • Each of the power supply lines 11 is passed through the passage of a hose-like molded part 19 and through an opening 15b in the end of the contact lug 15 which is welded to it and protrudes into the cavity 18.
  • the shape parts 19 each sit on a contact tab 15.
  • Each contact lug 15 exerts pressure on the corresponding molded part 19, so that it is slightly compressed in the hose axis and is therefore press-fitted to the walls defining the recess 18a and to the power supply line 11 passed therethrough. In this way, a gas-tight closure of the lamp base is ensured in the area of the power supply lines 11.
  • the protruding into the cavity 18 ends 15a of the con tact 15 are claw-like and clawed in the rear wall of the plastic base part 14.
  • the bushings 20 provided for the contact lugs 15 in the plastic base part 14 each have an insertion bevel 20a, which facilitates the assembly of the contact lugs 15.
  • the cavity 18 is closed with the aid of a snap-on cover 21.
  • the inside of the cover 21 is provided with an integrally formed web 22 which extends into the cavity 18 and which is seated on the surface of the contact tabs 15 facing away from the molded parts 19 and gives the contact tabs 15 under mechanical tension an additional hold.
  • the contact lugs 15, starting from the cavity 18, are passed through the lead-throughs 20 in the plastic base part 14 along the insertion bevels 20a which run obliquely to the base axis AA. Subsequently, the contact lugs 15 are tilted into the base axis AA, so that the current leads 11 thread through the opening 15b of the corresponding contact lug 15.
  • the tube-like molded parts 19 are pressed into the recesses 18a by the contact tabs 15 and compressed slightly, so that the molded parts 19 press-fit against the walls delimiting the recesses 18a and against the current leads 11 passed through the molded parts 19.
  • the contact lugs 15 tilt into the base axis AA
  • the claw-like ends 15a of the contact lugs 15 cling to the rear wall of the plastic base part 14. This pre-fixes the contact lugs 15 in their axial alignment.
  • the ends of the current leads 11 protruding through the openings 15b are welded to the contact flags 15.
  • the cavity 18 is closed with the aid of the snap-on cover 21.
  • FIGS 3 and 4 show a second embodiment of a contact flag.
  • the contact lug 15 ' according to the second exemplary embodiment has a rectangular contact surface 15d' provided with an opening 15b 'for a power supply 11, to which the contact surface 15e' is formed.
  • the contact surface 15d 'and the contact surface 15e' are arranged perpendicular to one another and connected to one another via a twisted area 15f.
  • a total of three claws 15a ', 15c' are molded onto the bearing surface 15d 'of the contact lug 15' which presses against the molded part 19 and which claw in the base wall when the contact lug 15 'is assembled.
  • claws 15a ', 15c ' are molded onto the side of the bearing surface 15d' opposite the contact lug 15e ', while the third claw 15c' is formed the same side of the support surface 15d 'as the contact surface 15e' is formed.
  • the claws 15a ', 15c' are not angled from the contact surface 15d 'here, but instead are arranged in the same plane.
  • the invention is not limited to the exemplary embodiments explained in more detail above.
  • a single molded part which consists of a heat-resistant, elastic and slightly compressible material and is provided with several bushings for each of the current leads led out of the lamp bulb can be used.
  • the molded parts do not necessarily have to be made of silicone, but can also be made from another material with a similar heat resistance, elasticity and compressibility to silicone.
  • the ends of the contact lugs projecting into the cavity of the plastic base part can be snapped behind a projection on the cavity wall, for example. You must be so 'not necessarily trained like claws.
  • Suitable materials for the plastic base part 14 are the thermosets and thermoplastics commonly used in lamp technology.

Landscapes

  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
  • Connecting Device With Holders (AREA)
  • Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)

Abstract

Cette lampe électrique, notamment pour véhicules à moteur, comprend une base avec une zone de raccordement (14) en un matériau électriquement isolant, pourvue de connexions électriques (15). Les amenées de courant (11) qui sortent de l'ampoule (10) sont soudées à des raccordements électriques en forme de cosses de contact (15) dans une cavité intérieure (18) de la zone de raccordement (14). Afin d'assurer l'étanchéité aux gaz, la base comprend une ou plusieurs pièces moulées (19) en un matériau élastique résistant à la chaleur, ajustées serrées sur la paroi qui délimite la cavité intérieure (18) et sur les amenées de courant (11) qui traversent la ou les pièces moulées (19). L'ajustage serré est établi par les cosses de contact (15) qui exercent une pression sur la ou les pièces moulées (19).
EP97923738A 1996-04-24 1997-04-17 Lampe electrique Expired - Lifetime EP0835521B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19616409 1996-04-24
DE19616409A DE19616409A1 (de) 1996-04-24 1996-04-24 Elektrische Lampe
PCT/DE1997/000771 WO1997040521A1 (fr) 1996-04-24 1997-04-17 Lampe electrique

Publications (2)

Publication Number Publication Date
EP0835521A1 true EP0835521A1 (fr) 1998-04-15
EP0835521B1 EP0835521B1 (fr) 2000-07-12

Family

ID=7792334

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97923738A Expired - Lifetime EP0835521B1 (fr) 1996-04-24 1997-04-17 Lampe electrique

Country Status (16)

Country Link
US (1) US6005336A (fr)
EP (1) EP0835521B1 (fr)
JP (1) JP3207439B2 (fr)
KR (1) KR100256842B1 (fr)
CN (1) CN1104033C (fr)
AR (1) AR006798A1 (fr)
AU (1) AU2948897A (fr)
BR (1) BR9702308A (fr)
CZ (1) CZ287439B6 (fr)
DE (2) DE19616409A1 (fr)
ES (1) ES2148981T3 (fr)
HU (1) HU221363B1 (fr)
MX (1) MX9709336A (fr)
PL (1) PL181897B1 (fr)
TW (1) TW400535B (fr)
WO (1) WO1997040521A1 (fr)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3777034B2 (ja) * 1997-12-11 2006-05-24 株式会社小糸製作所 放電ランプ装置用絶縁プラグ
DE19843506A1 (de) * 1998-09-23 2000-03-30 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Elektrische Lampe
DE19855412A1 (de) 1998-12-01 2000-06-08 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Elektrische Lampe
DE19955979A1 (de) * 1999-11-20 2001-05-23 Ist Metz Gmbh Anschlußanordnung für eine stabförmige zweiendige Entladungslampe
DE60035873T2 (de) * 1999-12-17 2008-08-14 Koninklijke Philips Electronics N.V. Lampensockel, aufbau aus einem lampenbrenner und einem lampensockel und verfahren zur befestigung einer lampe
US6577106B2 (en) 2000-11-30 2003-06-10 Honeywell International Inc. Multi-functional AC/DC converter
DE10224293A1 (de) * 2002-05-31 2003-12-11 Philips Intellectual Property Verfahren zur Herstellung von Teilbeschichtungen auf Lampenkolben
US6811285B2 (en) 2002-10-24 2004-11-02 Guide Corporation Method and structure for attaching a lens to a housing in an automotive lighting assembly
US20060202600A1 (en) * 2003-08-01 2006-09-14 Koninklijke Philips Electronics N.V. Lamp and method of manufacturing same
DE102004007150A1 (de) * 2004-02-12 2005-08-25 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Sockel für eine Scheinwerferlampe und Scheinwerferlampe
DE102005023797A1 (de) * 2005-05-19 2006-11-23 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Sockel für eine Lampe
DE202006002888U1 (de) * 2006-02-21 2006-05-04 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampensockel und Lampe mit einem Lampensockel
US7417364B2 (en) * 2006-09-11 2008-08-26 Osram Sylvania, Inc. Light source with sealant cover
DE102007023637B8 (de) 2007-05-22 2010-06-02 Friedrich-Alexander-Universität Erlangen-Nürnberg Lampensockel für eine elektrische Lampe
DE102007023636B4 (de) 2007-05-22 2009-04-16 Friedrich-Alexander-Universität Erlangen-Nürnberg Lampensockel für eine elektrische Lampe und Verfahren zur Herstellung eines Lampensockels
DE102008024495A1 (de) 2007-12-21 2009-06-25 Hubert Stüken GmbH & Co. KG Lampensockel für eine elektrische Lampe
DE102008056185A1 (de) 2008-11-06 2010-05-12 Osram Gesellschaft mit beschränkter Haftung Glühlampe
DE102009040572A1 (de) * 2009-09-08 2011-03-10 Osram Gesellschaft mit beschränkter Haftung Lampeneinheit
DE102011000716A1 (de) * 2011-02-07 2012-08-09 Novaled Ag Leuchte
US10066801B1 (en) 2017-10-04 2018-09-04 Osram Sylvania Inc. Vehicle lamp reflector having ventilation channel adjacent lamp capsule

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3528399A1 (de) * 1984-08-24 1986-02-27 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München Elektrische lampe
ES2095712T3 (es) * 1993-03-31 1997-02-16 Philips Electronics Nv Lampara electrica.
JP3259523B2 (ja) * 1994-06-17 2002-02-25 松下電器産業株式会社 白熱電球
US5610472A (en) * 1994-10-25 1997-03-11 Osram Sylvania Inc. Lamp assembly with resilient connector for locating and cushioning neon lamp

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9740521A1 *

Also Published As

Publication number Publication date
HU221363B1 (en) 2002-09-28
BR9702308A (pt) 1999-07-20
CN1104033C (zh) 2003-03-26
WO1997040521A1 (fr) 1997-10-30
PL181897B1 (en) 2001-10-31
ES2148981T3 (es) 2000-10-16
CZ415697A3 (cs) 1998-07-15
KR100256842B1 (ko) 2000-05-15
AU2948897A (en) 1997-11-12
CZ287439B6 (en) 2000-11-15
DE19616409A1 (de) 1997-10-30
PL324030A1 (en) 1998-05-11
AR006798A1 (es) 1999-09-29
TW400535B (en) 2000-08-01
CN1189917A (zh) 1998-08-05
EP0835521B1 (fr) 2000-07-12
HUP9901566A3 (en) 2000-08-28
MX9709336A (es) 1998-02-28
US6005336A (en) 1999-12-21
JPH10510675A (ja) 1998-10-13
JP3207439B2 (ja) 2001-09-10
HUP9901566A2 (hu) 1999-08-30
KR19990028378A (ko) 1999-04-15
DE59702003D1 (de) 2000-08-17

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