EP0455884A2 - Lampe fixée d'un côté - Google Patents

Lampe fixée d'un côté Download PDF

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Publication number
EP0455884A2
EP0455884A2 EP90124910A EP90124910A EP0455884A2 EP 0455884 A2 EP0455884 A2 EP 0455884A2 EP 90124910 A EP90124910 A EP 90124910A EP 90124910 A EP90124910 A EP 90124910A EP 0455884 A2 EP0455884 A2 EP 0455884A2
Authority
EP
European Patent Office
Prior art keywords
lamp
base
tubular extension
holder part
side 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
EP90124910A
Other languages
German (de)
English (en)
Other versions
EP0455884B1 (fr
EP0455884A3 (en
Inventor
Walter Schönherr
Fritz Eckhardt
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 EP0455884A2 publication Critical patent/EP0455884A2/fr
Publication of EP0455884A3 publication Critical patent/EP0455884A3/de
Application granted granted Critical
Publication of EP0455884B1 publication Critical patent/EP0455884B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01J5/48—Means forming part of the tube or lamp for the purpose of supporting it

Definitions

  • the invention relates to an electric lamp with a base on one side according to the preamble of patent claim 1.
  • a gas discharge lamp for motor vehicle headlights with a base on one side which has a discharge vessel made of hard or quartz glass with partial crushing or melting, the end of the vessel end having a tubular extension which is fixed in the lamp base is.
  • An electrical supply line is connected to the power supply of the electrode remote from the base, which leads partially parallel to the discharge vessel and is returned to the base.
  • the discharge vessel is centered by means of its tubular extension in a receiving device in the insulating part of the base and fastened with the aid of the current leads which are connected to the center contact and to the electrical supply line.
  • the object of the invention is to provide an electric lamp with a base on one side, which has a form-fitting, easy-to-produce tight fit of the lamp bulb in the holder part of the base.
  • the position of the lamp bulb in the holder part should be easily adjustable during lamp assembly.
  • the position of the lamp bulb, which is in the receiving device with its tubular extension can be easily adjusted in the axial direction before being fixed.
  • the medium suitable for high-frequency-induced heating then enables the holder part material to melt in the immediate vicinity of the tubular extension of the lamp bulb, so that after the melt has cooled, the lamp bulb is fixed in its position and the tubular extension forms a positive contact with the holder part, which is formed by a very good adhesive adhesion.
  • This type of attachment of the lamp bulb in the holder part is suitable for fully mechanized and inexpensive production.
  • Lamps of this construction have a stable, form-fitting and vibration-proof seat in the base.
  • the elimination of metallic holding elements improves the high-voltage strength of the lamp base against high-voltage pulses, as are necessary for the hot re-ignition of a discharge lamp.
  • the figure shows a 35 watt metal halide discharge lamp with a discharge vessel 1 made of quartz glass, a base-side 3 and a base-side pinch end 4 and a tubular extension 6, which is molded directly onto the base-side pinch 3.
  • a discharge vessel 1 made of quartz glass
  • the holder part 2 serves to hold the discharge vessel 1 and is welded by means of the steel ring 18 to the base sleeve, not shown.
  • the connection of holder part 2 and base sleeve, which together form the lamp base, is disclosed in EP-PA 0 231 936.
  • the discharge space 5 contains mercury, a noble gas or a noble gas mixture and metal halide additives as a filling.
  • two mutually opposite electrodes 7 and 8 are arranged within the discharge space 5, each of which is supplied with electrical energy via a molybdenum foil 9 and current leads 10, 11 and 11a.
  • the part of the power supply line 11a which runs parallel to the discharge vessel 1 has a ceramic sleeve 12 which prevents photoionization by UV rays and prevents it of electrical breakdowns between the two power supplies 10 and 11 is used.
  • the discharge vessel 1 is inserted with its tubular extension 6 in the receptacle 15, which is designed here as an axial bore in the holder part 2 and whose diameter of approximately 5 mm corresponds to the outer diameter of the extension 6.
  • the receptacle 15 has an expansion 15a at its end facing the surface of the holder part 2, in which a coil spring 16 made of spring steel with three turns is arranged, which is used for high-frequency-induced heating of the plastic material by the holder part 2 in the immediate vicinity of the expansion 15a.
  • the diameter of the expansion 15a is approximately 6 mm and is adapted to the outer diameter of the coil spring 16.
  • the holder part 2 consists of a high-temperature-resistant thermoplastic material, for example polyether ketone or polyphenylene sulfide, the melting temperature of which is between approximately 300-500 ° C. It has bushings for the power supply lines 10 and 11a, which open into shafts 13 and 14 molded onto the holder part 2.
  • the base-side power supply line 10 is bent at right angles to the shaft 14 of the power supply line 11a immediately after it emerges from the shaft 13, so that the distance between the two power supply lines 10 and 11a increases.
  • the discharge vessel 1 of this lamp with its tubular Extension 6 can be made by any known method.
  • the receptacle 15 and its widening 15a are designed as axial bores in the holder part 2, the diameters of the bores being adapted to the outside diameters of the tubular extension 6 or the helical spring 16.
  • the depth of the receptacle 15 extends approximately to half the height of the barrel-shaped holder part 2.
  • a helical spring 16 made of spring steel is pushed over approximately the last third of the tubular extension 6 of the discharge vessel 1, said spring 16 being tight against the outer wall of the extension 6.
  • the tubular extension 6 is inserted together with the coil spring 16 to the desired depth, preferably up to the stop, into the receptacle 15 and the coil spring 16 is countersunk in the widening 15a.
  • a conductor loop is placed on the top of the holder part 2 around the tubular extension 6, that is to say in the immediate vicinity of the helical spring 16, which is arranged as a primary winding in an electrical circuit with a high-frequency generator.
  • a high-frequency pulse of short duration is sent from the high-frequency generator through the conductor loop, which induces a high current pulse in the coil spring 16, so that the thermoplastic material of the holder part 2 melts in the immediate vicinity of the coil spring 16.
  • the melt 17 swells between the turns of the helical spring 16 to the quartz glass wall of the tubular extension 6, so that after the melt has cooled, the discharge vessel 1 and the holder part 2 have a positive contact, which is characterized by very good adhesive adhesion at the interface from the quartz glass of the extension 6 to the thermoplastic material of the holder part 2.
  • the heating temperature of the thermoplastic material is determined by the duration of the high-frequency pulse and here is approximately 800 ° C., which is considerably lower than the melting temperature of the quartz glass wall of the tubular extension 6.
  • the operating temperature of the tubular extension 6 is sufficiently high at approximately 160 ° C. below the melting temperature of the thermoplastic material of the holder part 2, so that the connection between the discharge vessel 1 and the holder part 2 is not destroyed during the operation of the lamp.
  • the manufacturing process described here by way of example is not limited to the 35 watt metal halide discharge lamp set out in the exemplary embodiment, but can also be used for other lamp types, in particular also for halogen incandescent lamps which have a quartz or a hard glass bulb and only have a one-sided vessel closure, e.g. a bruise are provided.

Landscapes

  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
EP90124910A 1990-05-08 1990-12-20 Lampe fixée d'un côté Expired - Lifetime EP0455884B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4014745 1990-05-08
DE4014745A DE4014745A1 (de) 1990-05-08 1990-05-08 Einseitig gesockelte elektrische lampe

Publications (3)

Publication Number Publication Date
EP0455884A2 true EP0455884A2 (fr) 1991-11-13
EP0455884A3 EP0455884A3 (en) 1992-04-01
EP0455884B1 EP0455884B1 (fr) 1994-03-23

Family

ID=6405956

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90124910A Expired - Lifetime EP0455884B1 (fr) 1990-05-08 1990-12-20 Lampe fixée d'un côté

Country Status (4)

Country Link
US (1) US5270610A (fr)
EP (1) EP0455884B1 (fr)
JP (1) JP2875046B2 (fr)
DE (2) DE4014745A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0696046A2 (fr) 1994-08-04 1996-02-07 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe à décharge à haute pression à culottage d'un seul cÔté
KR100708497B1 (ko) * 1999-06-23 2007-04-16 파텐트-트로이한트-게젤샤프트 퓌어 엘렉트리쉐 글뤼람펜 엠베하 전기 램프의 기저부를 장착하는 방법
EP1439569A3 (fr) * 2003-01-03 2007-08-29 General Electric Company Lampe a décharge comprenant un socle et procédé et fixation pour sa fabrication

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0520256U (ja) * 1991-06-04 1993-03-12 エヌ・ベー・フイリツプス・フルーイランペンフアブリケン 高圧ガス放電ランプ
NL9200421A (nl) * 1992-03-06 1993-10-01 Philips Nv Gesokkelde elektrische lamp en connector daarvoor.
JP2769274B2 (ja) * 1993-02-16 1998-06-25 株式会社小糸製作所 放電ランプ装置用絶縁性ベース
DE9313823U1 (de) * 1993-09-13 1993-11-11 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 81543 München Elektrische Lampe
CA2147517C (fr) * 1994-04-25 2006-03-21 Walter Newman Douille de lampe a culot goliath
DE19951873A1 (de) * 1999-10-28 2001-05-03 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Entladungslampe
DE10015558C2 (de) * 2000-03-30 2002-03-14 Heraeus Noblelight Gmbh Optischer Strahler
DE10160383A1 (de) * 2001-12-10 2003-06-18 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Reflektorlampe und Verfahren zur Herstellung einer Reflektorlampe
DE102004058881A1 (de) * 2004-12-06 2006-06-08 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Hochdruckentladungslampe und Beleuchtungsvorrichtung mit Hochdruckentladungslampe
WO2011048517A1 (fr) * 2009-10-19 2011-04-28 Koninklijke Philips Electronics N.V. Lampe à décharge à intensité élevée

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1873776A (en) * 1926-03-31 1932-08-23 Gen Electric Method of basing vacuum tubes and similar articles
GB909991A (en) * 1958-02-19 1962-11-07 Ass Elect Ind Improvements relating to the cementing of the bases of thermionic valves and the like to their envelopes
DE2634980C3 (de) * 1976-08-04 1979-01-25 Original Hanau Quarzlampen Gmbh, 6450 Hanau An Halterungen befestigbarer Strahler mit von Sockelhülsen umgebenen kantigen Quetschungen sowie Verfahren und Vorrichtung zum Verbinden der Quetschungen des Strahlers mit den Sockelhülsen
JPS57124830A (en) * 1981-01-27 1982-08-03 Sony Corp Sealing method for cathode-ray tube
DE8522797U1 (de) * 1985-08-07 1985-10-31 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München Kittlos gesockelte elektrische Lampe
DD245080A1 (de) * 1985-12-23 1987-04-22 Narva Rosa Luxemburg K Gasentladungslampe fuer kraftfahrzeugscheinwerfer
DE3603753A1 (de) * 1986-02-06 1987-08-20 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Elektrische lampe
EP0261722B1 (fr) * 1986-09-22 1992-01-22 Koninklijke Philips Electronics N.V. Lampe électrique
US4982131A (en) * 1989-08-01 1991-01-01 Gte Products Corporation Reflector lamp assembly utilizing lamp capsule that snaps directly into reflector

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0696046A2 (fr) 1994-08-04 1996-02-07 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe à décharge à haute pression à culottage d'un seul cÔté
KR100708497B1 (ko) * 1999-06-23 2007-04-16 파텐트-트로이한트-게젤샤프트 퓌어 엘렉트리쉐 글뤼람펜 엠베하 전기 램프의 기저부를 장착하는 방법
EP1439569A3 (fr) * 2003-01-03 2007-08-29 General Electric Company Lampe a décharge comprenant un socle et procédé et fixation pour sa fabrication

Also Published As

Publication number Publication date
JPH04229545A (ja) 1992-08-19
EP0455884B1 (fr) 1994-03-23
US5270610A (en) 1993-12-14
EP0455884A3 (en) 1992-04-01
JP2875046B2 (ja) 1999-03-24
DE4014745A1 (de) 1991-11-14
DE59005124D1 (de) 1994-04-28

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