EP0775366A1 - Lampe a halogene a culot sans mastic - Google Patents

Lampe a halogene a culot sans mastic

Info

Publication number
EP0775366A1
EP0775366A1 EP95925734A EP95925734A EP0775366A1 EP 0775366 A1 EP0775366 A1 EP 0775366A1 EP 95925734 A EP95925734 A EP 95925734A EP 95925734 A EP95925734 A EP 95925734A EP 0775366 A1 EP0775366 A1 EP 0775366A1
Authority
EP
European Patent Office
Prior art keywords
pinch seal
holder part
halogen
broad sides
sides
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
EP95925734A
Other languages
German (de)
English (en)
Other versions
EP0775366B1 (fr
Inventor
Peter Helbig
Hermann Steiner
Gerhard Behr
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 EP0775366A1 publication Critical patent/EP0775366A1/fr
Application granted granted Critical
Publication of EP0775366B1 publication Critical patent/EP0775366B1/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
    • H01J5/58—Means for fastening the separate part to the vessel, e.g. by cement
    • H01J5/60—Means for fastening the separate part to the vessel, e.g. by cement for fastening by mechanical means
    • 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 without a cement, according to the preamble of claim 1.
  • a lamp of this type is disclosed, for example, in US Pat. No. 4,492,893.
  • the lamp described here is a halogen bulb with a cementless base for use in a motor vehicle headlight.
  • This lamp has a lamp bulb with a pinch seal having two broad sides and two narrow sides, which is fixed by clamping in a recess in a holder part belonging to the base.
  • the squeeze foot is fastened in the holder part by means of several fastening or support straps, which act both on the broad sides and on the narrow sides of the squeeze seal. Since the thickness of the pinch seal is uniform over its entire length, the support tabs which are clamped on the broad sides of the pinch seal exert strong pressure on the pinch seal, which can lead to glass injuries on the pinch seal when the lamp is socketed.
  • the support tabs acting on the narrow sides of the pinch seal can even cause the pinch seal to split due to their relatively small contact surface and the strong pressure on the narrow sides.
  • the halogen incandescent lamp according to the invention is carried by a metallic holder part which is part of the lamp base.
  • the holder part has a punched-out section in which the pinch seal of the lamp bulb, which has two broad sides and two narrow sides, is fixed in a clamped manner with the aid of support tabs.
  • the support straps are molded onto the holder part and all act on the broad sides of the squeeze seal, which is essentially rectangular in cross section, while the narrow sides of the press seal are arranged in a contactless manner in the recess of the holder part. As a result, the tolerances of the press seal width do not affect the size of the support forces.
  • the pinch seal of the lamp bulb is tapered in the base direction, that is to say that the pinch seal has a smaller thickness at its base-side free end than at its end facing away from the base.
  • the holder part advantageously has four further support straps, so that both broad sides of the pinch seal have four support or support points in common with the support straps.
  • the lamp bulb is also provided with several molded-in depth stops in the transition area to the pinch seal, which are seated on the holder part after the lamp has been installed. These depth stops advantageously lie on four support lugs and exert slight pressure on them. In conjunction with the aforementioned snap lock, they enable the pinch seal to be fixed in the axial position without play in the holder part.
  • the holder part according to the invention advantageously consists of stainless steel and not of nickel silver. Then the nickel-plating of the holder part, which pollutes the environment, can be dispensed with.
  • Figure 1 is a schematic side view of a cementless halogen bulb according to the preferred embodiment
  • Figure 2 is a bottom view of the holder part of the preferred embodiment
  • FIG. 3 shows a cross section through the pinch seal of the halogen incandescent lamp according to the preferred exemplary embodiment, the section plane running parallel to the narrow sides of the pinch seal
  • FIG. 4 shows a cross section through the holder part according to FIG. 2
  • Figure 5 is a partially sectioned side view of the lamp envelope according to the preferred embodiment
  • the halogen bulb with a cementless base according to the invention in accordance with the preferred exemplary embodiment to be described in more detail here is a halogen bulb for use in a motor vehicle headlight.
  • Figure 1 illustrates the structure of this lamp.
  • the halogen incandescent lamp according to the invention has a lamp bulb 1 made of tempered glass which is tightly squeezed on one side.
  • the pinch seal 10 of the lamp bulb 1 is fixed in a cup-like holder part 2 made of stainless steel.
  • the holder part 2 forms, together with the base sleeve 3 and the adjuster plate 4 formed thereon and with the base stone 5, the lamp base.
  • the holder part 2 is welded to the adjustment plate 4 by means of welding lugs 13 punched out of the adjustment plate 4 and bent upwards.
  • One of the filaments 6 is provided with an anti-glare hood 12.
  • FIGS. 2 to 5 The lamp parts essential for understanding the invention are shown in FIGS. 2 to 5.
  • Figure 2 shows the holder part 2 of the halogen incandescent lamp according to the invention viewed from below.
  • FIGS. 3 and 4 illustrate the interaction of the press seal 10 and the holder part 2.
  • the holder part 2 has a punched-out recess 20 in which the press seal 10 is fixed in a clamping manner.
  • Six support brackets 21a, 21b, 22a, 22b, 23a, 23b, which are angled downward, are formed on the holder part 2, that is to say in the direction of the contact lugs 9, and they clamp against the broad sides of the pinch seal 10, which is essentially rectangular in cross section.
  • support brackets 22a, 22b, 23a, 23b are stiffened by means of beads which give them an approximately V-shaped cross section in the horizontally running section, while the two remaining support tabs 21a, 21b each have an approximately centrally arranged recess 24a, 24b.
  • These recesses 24a, 24b are matched in each case to a guide web 50a, 50b molded onto the broad sides of the pinch seal 10.
  • the guide webs 50a, 50b run in the longitudinal direction, that is to say parallel to the narrow sides of the pinch seal 10, and are arranged approximately centrally on the broad sides of the pinch seal 10.
  • nose-like elevation 51a, 52a, 51b, 52b on each side of the guide webs 50a, 50b, which are also integrally formed on the pinch seal 10.
  • the upper edge of these nose-like elevations 51a, 52a, 51b, 52b forms, together with the free ends of the support tabs 21a, 21b, a snap lock.
  • the pinch seal 10 is tapered downwards, that is to say in the direction of the base.
  • the thickness of the pinch seal 10 is approximately 3.4 mm below the nose-like elevations 51a, 52a, 51b, 52b and about 3.8 mm above the nose-like elevations 51a, 52a, 51b, 52b.
  • the narrow sides of the pinch seal 10 are encircled without contact by circularly curved edges 25 of the cutout 20 in the holder part 2.
  • the pinch seal 10 is also equipped with four depth stops 53a, 54a, 53b, 54b, which are formed on the broad sides of the pinch seal 10 in the transition region to the lamp bulb 1. After installation, these depth stops 53a, 54a, 53b, 54b are seated on the support tabs 22a, 22b, 23a, 23b, which protrude from the cover surface of the holder part 2 because of their beads.

Landscapes

  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)

Abstract

L'invention concerne une lampe à halogène à culot sans mastic, notamment une lampe à halogène destinée à un projecteur automobile. Cette lampe comporte un élément d'appui métallique (2) présentant un évidement dans lequel le joint compressible (10) de l'ampoule (1) est bloqué au moyen de plusieurs colliers d'appui (21a, 21b, 22a, 22b, 23a, 23b). Afin de réduire le risque d'endommagement du joint compressible (10) lors du montage du culot, le joint compressible (10) se rétrécit graduellement en direction du culot et tous les colliers d'appui (21a, 21b, 22a, 22b, 23a, 23b) qui agissent sur le joint compressible (10) sont orientés contre les côtés larges du joint compressible (10), pratiquement rectangulaire en coupe, tandis que les côtés étroits du joint compressible (10) sont disposés sans contact dans l'élément d'appui (2).
EP95925734A 1994-08-10 1995-07-27 Lampe a halogene a culot sans mastic Expired - Lifetime EP0775366B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4428357A DE4428357A1 (de) 1994-08-10 1994-08-10 Kittlos gesockelte Halogenglühlampe
DE4428357 1994-08-10
PCT/DE1995/000983 WO1996005610A1 (fr) 1994-08-10 1995-07-27 Lampe a halogene a culot sans mastic

Publications (2)

Publication Number Publication Date
EP0775366A1 true EP0775366A1 (fr) 1997-05-28
EP0775366B1 EP0775366B1 (fr) 1998-09-30

Family

ID=6525376

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95925734A Expired - Lifetime EP0775366B1 (fr) 1994-08-10 1995-07-27 Lampe a halogene a culot sans mastic

Country Status (11)

Country Link
EP (1) EP0775366B1 (fr)
JP (1) JP3678751B2 (fr)
KR (1) KR100325645B1 (fr)
CN (1) CN1089945C (fr)
BR (1) BR9508988A (fr)
CA (1) CA2194288C (fr)
DE (3) DE4428357A1 (fr)
ES (1) ES2121406T3 (fr)
HU (1) HU215893B (fr)
TW (1) TW264560B (fr)
WO (1) WO1996005610A1 (fr)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4428357A1 (de) * 1994-08-10 1996-02-15 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Kittlos gesockelte Halogenglühlampe
DE19739022A1 (de) * 1997-09-06 1999-03-11 Hella Kg Hueck & Co Reflektorleuchte
DE19843506A1 (de) * 1998-09-23 2000-03-30 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Elektrische Lampe
CN1322532C (zh) * 2002-04-26 2007-06-20 凤凰灯具印度有限公司 白炽电灯及插座组件
DE10358361A1 (de) * 2003-12-12 2005-07-07 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Haltevorrichtung zur Fixierung eines Lampenkolbens und zugehörige Lampe
EP1560258A3 (fr) * 2003-12-12 2008-01-23 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe à incandescence pour phare de véhicule
WO2006016314A1 (fr) 2004-08-05 2006-02-16 Philips Intellectual Property & Standards Gmbh Lampe presentant un amortissement des vibrations ameliore
DE102005048444A1 (de) 2005-10-07 2007-04-12 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Scheinwerferlampe
DE102006060008A1 (de) 2006-12-19 2008-06-26 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe mit verbesserter Quetschungsgeometrie
DE102007003491B4 (de) * 2007-01-24 2017-11-16 Osram Gmbh Lampe
DE102007015923A1 (de) 2007-04-02 2008-10-09 Osram Gesellschaft mit beschränkter Haftung Lampensockel, Fahrzeuglampe mit einem derartigen Lampensockel und Verfahren zur Herstellung einer Fahrzeuglampe
DE102007048387A1 (de) 2007-10-09 2009-04-16 Osram Gesellschaft mit beschränkter Haftung Lampe, insbesondere Fahrzeuglampe
DE102007055172A1 (de) 2007-11-19 2009-05-20 Osram Gesellschaft mit beschränkter Haftung Lampe, insbesondere Fahrzeuglampe
DE102008009027A1 (de) 2008-02-14 2009-08-20 Osram Gesellschaft mit beschränkter Haftung Glühlampe für einen Fahrzeugscheinwerfer
WO2009107064A2 (fr) * 2008-02-28 2009-09-03 Philips Intellectual Property & Standards Gmbh Porte-ampoule pour lampe d'automobile
DE102008024173A1 (de) 2008-05-19 2009-11-26 Osram Gesellschaft mit beschränkter Haftung Stromzuführungssystem und Lampe mit einem derartigen Stromzuführungssystem
DE102009037577A1 (de) 2009-08-14 2011-02-17 Osram Gesellschaft mit beschränkter Haftung Halogenglühlampe für Fahrzeugscheinwerfer
DE102010002647A1 (de) 2010-03-08 2011-09-08 Osram Gesellschaft mit beschränkter Haftung Halogenglühlampe
DE102010002650B4 (de) 2010-03-08 2012-11-22 Osram Ag Halogenglühlampe für Fahrzeugscheinwerfer

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1204624A (en) * 1968-02-22 1970-09-09 Thorn Lighting Ltd Formerly Kn Electric lamps
DE8121528U1 (de) * 1981-07-22 1982-11-18 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München Zweifaden-halogengluehlampe fuer kraftfahrzeugscheinwerfer
JPS63451U (fr) * 1986-06-20 1988-01-05
DE4428357A1 (de) * 1994-08-10 1996-02-15 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Kittlos gesockelte Halogenglühlampe

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9605610A1 *

Also Published As

Publication number Publication date
HUT76399A (en) 1997-08-28
KR970705167A (ko) 1997-09-06
BR9508988A (pt) 1997-11-11
CA2194288C (fr) 2004-10-26
KR100325645B1 (ko) 2002-07-03
CN1089945C (zh) 2002-08-28
DE59503806D1 (de) 1998-11-05
DE4428357A1 (de) 1996-02-15
DE19601396C2 (de) 2002-03-14
HU215893B (hu) 1999-03-29
DE19601396A1 (de) 1997-07-17
CN1155352A (zh) 1997-07-23
ES2121406T3 (es) 1998-11-16
EP0775366B1 (fr) 1998-09-30
JPH10504130A (ja) 1998-04-14
TW264560B (en) 1995-12-01
WO1996005610A1 (fr) 1996-02-22
CA2194288A1 (fr) 1996-02-22
JP3678751B2 (ja) 2005-08-03

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