EP0231936B1 - Lampe électrique - Google Patents

Lampe électrique Download PDF

Info

Publication number
EP0231936B1
EP0231936B1 EP87101471A EP87101471A EP0231936B1 EP 0231936 B1 EP0231936 B1 EP 0231936B1 EP 87101471 A EP87101471 A EP 87101471A EP 87101471 A EP87101471 A EP 87101471A EP 0231936 B1 EP0231936 B1 EP 0231936B1
Authority
EP
European Patent Office
Prior art keywords
electric lamp
lamp according
holder element
connection
base sleeve
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.)
Expired - Lifetime
Application number
EP87101471A
Other languages
German (de)
English (en)
Other versions
EP0231936A2 (fr
EP0231936A3 (en
Inventor
Fritz Eckhardt
Peter Helbig
Walter Schönherr
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 EP0231936A2 publication Critical patent/EP0231936A2/fr
Publication of EP0231936A3 publication Critical patent/EP0231936A3/de
Application granted granted Critical
Publication of EP0231936B1 publication Critical patent/EP0231936B1/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
    • H01J5/50—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
    • H01J5/56—Shape of the separate part
    • 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 claim 1.
  • EP-A-172 529 (Art. 54 (3) EPC).
  • This consists of a halogen lamp according to claim 1, but which is received at its pinch by a metal holding element. After the lamp has been adjusted, this is connected to the plastic base sleeve by means of high-frequency heating.
  • a holding element made of an electrically insulating, high-temperature resistant material is to be used.
  • the invention is therefore based on the object of providing such a holding element which fixes the lamp bulb and which, after adjustment of the lamp, can be connected to the base sleeve made of plastic.
  • the holding element fixing the lamp bulb is made of plastic at least in the connection area with the base sleeve and a means made of ferromagnetic material is arranged in this connection area between the holding element and the base sleeve.
  • both the base sleeve and the holding element fixing the lamp have a circular cross section in the connection area. Since the lamp should not only be adjusted in height, but also in its inclination relative to the base sleeve, the holding element in the connection area is convexly curved in the vertical direction, so that the holding element and base sleeve interact like a ball joint.
  • the arranged between holding element and base sleeve ferromagnetic means made of, for example, a nickel-iron alloy can consist of individual sandwiched plates, but advantageously it is designed as a ring and inserted in a groove arranged on the holding element.
  • the plastic melts in the area of the ferromagnetic material by means of high-frequency heating, so that the holding element and base sleeve connect to one another.
  • the part of the holding element which holds the lamp bulb is made from ceramic, owing to the high ignition voltage of 15-20 kV and a lamp operating temperature of approximately 900 ° C.
  • One way to put this ceramic part on The plastic part of the holding element is attached by ultrasonic riveting.
  • these parts can also be connected to one another by means of a snap connection, etc.
  • FIG. 1 shows a motor vehicle halogen incandescent lamp which consists of a lamp bulb 1 pinched on one side, luminous elements 2 arranged therein and current supply wires 3 connected to the luminous elements 2 and led out of the pinch.
  • the lamp bulb 1 is held at its pinch by a holding element 4 made of a high-temperature-resistant plastic, which is barrel-shaped, in particular a spherical layer.
  • the lamp consists of a cup-shaped base sleeve 5 and three base contacts 6 anchored on the side of the base base facing away from the lamp bulb 1 (only two are visible).
  • the lamp power supply lines 3 are through openings in the base base passed and welded to the base contacts 6 on the back.
  • a cover element 8 is placed on this side of the base sleeve 5. This is ultrasonically riveted to the base sleeve 5 and in this exemplary embodiment carries an adjusting ring 9.
  • the intermediate space 10 formed by the base base and cover element is additionally filled with a resin made of plastic.
  • the holding element 4 which fixes the lamp bulb is of barrel-shaped design and is thus freely movable in its height and inclination with respect to the cylindrical base sleeve 5 and thus also with respect to the adjusting ring 9.
  • the holding element 4 and the base sleeve 5, both made of physically different thermoplastics are connected to one another with the aid of an interposed ferromagnetic ring 11, which causes the plastic material in its surroundings to melt when a high frequency is applied.
  • This ring 11 can be inserted in a groove 12 arranged on the holding element 4. It is advantageously provided with openings 13 through which additional molten plastic material can swell to increase the strength of the connection.
  • the ring 11 does not completely include the holding element 4. This has manufacturing advantages.
  • the ring 11 is made of a tube with a smaller diameter than that of the holding element 4 cut off, resulting in a material saving. Then it is cut open and snapped over the holding element 4. The spring force created by the bending of the ring 11 gives the ring 11 sufficient hold on the holding element 4 until after the holding element 4 and the base sleeve 5 have been connected to one another.
  • FIG. 2 shows a high-pressure discharge lamp 14 with a base that is pinched on one side, and a pinch 19 that is pinched at two ends is shown in FIG. 3.
  • the high-pressure discharge lamp 14 which is pinched on one side, is carried by a two-part holding element 15. Due to the high ignition voltage of 15-20 kV and the high operating temperature of approx. 900 ° C., the part 15a of the holding element 15 which carries the lamp is made of ceramic. This is connected to the part of the holding element made of plastic 15b, which is provided for the connection to the base sleeve 16, also made of plastic, by means of ultrasonic rivets.
  • a high temperature-resistant thermoplastic as available under the trade name ULTEM 2300 or RYTO, is used for the plastic part 15b of the holding element 15.
  • the base sleeve 16 consists for example of a polyamide.
  • the base sleeve 16 does not have its own bottom part. This is from a cover element 17 taken over, which is snapped onto the lower end of the base sleeve 16 and through which the base contacts are passed.
  • the cavity formed by the holding element 15, base sleeve 16 and cover element 17 is filled with a resin made of plastic, as in the exemplary embodiment described above.
  • the adjusting ring 18 of this motor vehicle discharge lamp is molded onto the base sleeve 16.
  • FIG. 3 shows the lamp structure for a high-pressure discharge lamp 19 pinched on both sides, which essentially corresponds to that for the discharge lamp 14 pinched on one side.
  • the lamp 19 is also held by a ceramic part 20a of the holding element 20 and this ceramic part 20a is connected to the plastic part 20b of the holding element 20 by ultrasonic riveting 25.
  • the ceramic part 20a itself consists of a round plate 20a1, which rests on the plastic part 20b of the holding element 20.
  • This plate 20a1 is a trough-shaped part 20a2 formed, which is arranged parallel to the lamp 19.
  • the current lead 21 led out of the lamp bulb 19 at the end facing away from the base is electrically conductively connected to a contact 22 mounted in the groove, and this contact 22 in turn is connected to one of the base contacts 23.
  • the connection 24 between contact 22 and base contact 23 is guided along on the side facing away from the lamp bulb 19 of the channel-shaped part 20a 2.
  • the groove-shaped part has in this motor vehicle lamp according to FIG. 3 additionally the function of a dimming means for generating the light distribution customary in motor vehicle lamps.

Landscapes

  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)

Claims (13)

  1. Lampe électrique, constituée par une ampoule comportant des éléments d'alimentation en courant ressortant de l'ampoule, un élément de maintien fixant l'ampoule de la lampe, et une douille de culot en matière plastique, l'élément de retenue et la douille de culot étant réunis entre eux par chauffage à haute fréquence, et par au moins deux contacts de culot, qui sont reliés de façon électriquement conductrice au moins aux éléments d'alimentation en courant de la lampe, et dans laquelle l'élément de retenue (4,15,20), qui fixe l'ampoule (1,14,19) de la lampe, est formé d'une matière plastique, au moins dans la zone de jonction avec la douille de culot (5,16) et que des moyens (11) réalisés en un matériau ferromagnétique sont disposés entre l'élément de retenue (4,15,20) et la douille de culot (5,16).
  2. Lampe électrique suivant la revendication 1, dans laquelle les moyens formés d'un matériau ferromagnétique sont une bague (11).
  3. Lampe électrique suivant la revendication 2, caractérisée par le fait que l'élément de retenue (4,15,20) possède, dans la zone de jonction avec la douille de culot (5,16), une rainure (12) dans laquelle est insérée la bague (11).
  4. Lampe électrique suivant la revendication 1, dans laquelle le contour extérieur de l'élément de retenue (4,15,20) est cintré avec une forme convexe aussi bien dans la direction horizontale que verticale dans la zone de jonction.
  5. Lampe électrique suivant la revendication 4, dans laquelle l'élément de retenue (4,15,20) correspond, dans la zone de jonction, à la forme d'une sphère ou d'une couche sphérique.
  6. Lampe électrique suivant la revendication 2, dans laquelle la bague (11) comporte des passages traversants (13).
  7. Lampe électrique suivant la revendication 2, dans laquelle l'élément de retenue (4,15,20) n'est pas entouré complètement par la bague (11).
  8. Lampe électrique suivant la revendication 1, dans laquelle l'élément de retenue (15,20) est constitué par la partie en matière plastique (15b,20b), qui forme la liaison, et par une partie (15a,20a), emmanchée sur la précédente et maintenant l'ampoule (14,19) de la lampe et qui est constituée par un matériau résistant à la température et électriquement isolant.
  9. Lampe électrique suivant la revendication 8, dans laquelle le matériau résistant à la température et électriquement isolant est une céramique.
  10. Lampe électrique suivant la revendication 9, dans laquelle la partie (15a,20a) de l'élément de retenue, qui est réalisée en céramique, est fixée au moyen d'un rivetage par ultrasons sur la partie en matière plastique (15b,20b) de la zone de liaison de l'élément de retenue.
  11. Lampe électrique suivant la revendication 1, dans laquelle la lampe (1) est une lampe à halogène.
  12. Lampe électrique suivant la revendication 1, dans laquelle la lampe (4) est une lampe à décharge haute pression comportant un pincement unilatéral.
  13. Lampe électrique suivant la revendication 1, dans laquelle la lampe (19) est une lampe à décharge haute pression comportant un pincement bilatéral.
EP87101471A 1986-02-06 1987-02-04 Lampe électrique Expired - Lifetime EP0231936B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863603753 DE3603753A1 (de) 1986-02-06 1986-02-06 Elektrische lampe
DE3603753 1986-02-06

Publications (3)

Publication Number Publication Date
EP0231936A2 EP0231936A2 (fr) 1987-08-12
EP0231936A3 EP0231936A3 (en) 1989-10-18
EP0231936B1 true EP0231936B1 (fr) 1992-12-30

Family

ID=6293577

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87101471A Expired - Lifetime EP0231936B1 (fr) 1986-02-06 1987-02-04 Lampe électrique

Country Status (4)

Country Link
US (1) US4795939A (fr)
EP (1) EP0231936B1 (fr)
JP (1) JPH0766785B2 (fr)
DE (2) DE3603753A1 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5039904A (en) * 1989-09-28 1991-08-13 General Electric Company Mount for miniature arc lamp
JPH044555A (ja) * 1990-04-20 1992-01-09 Koito Mfg Co Ltd 放電ランプ装置
DE4014745A1 (de) * 1990-05-08 1991-11-14 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Einseitig gesockelte elektrische lampe
US5239226A (en) * 1990-12-14 1993-08-24 General Electric Company Replaceable lamp assembly for automotive headlamps
DE4223643A1 (de) * 1992-07-17 1994-01-20 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Einseitig gesockelte Hochdruckentladungslampe
JP2600052B2 (ja) * 1993-08-17 1997-04-16 株式会社旭電気製作所 自動車用前照灯の放電管用口金
DE9313823U1 (de) * 1993-09-13 1993-11-11 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Elektrische Lampe
DE4427593A1 (de) * 1994-08-04 1996-02-08 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Einseitig gesockelte Hochdruckentladungslampe
DE19602625A1 (de) * 1996-01-25 1997-07-31 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Elektrische Lampe
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
DE102005005265A1 (de) 2005-02-04 2006-08-10 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Kittlos gesockelte Lampe
DE102005023797A1 (de) * 2005-05-19 2006-11-23 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Sockel für eine Lampe
WO2008006443A1 (fr) * 2006-07-11 2008-01-17 Dsm Ip Assets B.V. Support de lampes
WO2008141630A2 (fr) * 2007-05-22 2008-11-27 Osram Gmbh Culot de lampe pour une lampe électrique
US9347637B2 (en) * 2013-03-15 2016-05-24 Federal-Mogul Corporation Vehicle lamp socket assembly
CN112672014B (zh) * 2020-12-21 2022-07-05 临沂市拓普网络股份有限公司 一种基于智慧课堂的监控摄像头

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0172529A2 (fr) * 1984-08-24 1986-02-26 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe électrique

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4386292A (en) * 1980-07-02 1983-05-31 Gte Products Corporation Projection lamp comprising single ended arc discharge lamp and an interference filter
DE3236462A1 (de) * 1982-10-01 1984-04-05 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München Hochdruckentladungslampe mit sockel und zugehoeriger fassung
US4528619A (en) * 1983-06-24 1985-07-09 Gte Products Corporation Replaceable lamp unit providing hermetic seal and fixed alignment for electric lamp contained therein and automobile headlight utilizing same
US4569006A (en) * 1985-01-15 1986-02-04 Gte Products Corporation Replaceable lamp unit and automobile headlight utilizing same
DE3603743A1 (de) * 1986-02-06 1987-08-13 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Hochdruckentladungslampe fuer die verwendung in kraftfahrzeugscheinwerfern

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0172529A2 (fr) * 1984-08-24 1986-02-26 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe électrique

Also Published As

Publication number Publication date
EP0231936A2 (fr) 1987-08-12
US4795939A (en) 1989-01-03
JPH0766785B2 (ja) 1995-07-19
EP0231936A3 (en) 1989-10-18
JPS62186459A (ja) 1987-08-14
DE3783240D1 (de) 1993-02-11
DE3603753A1 (de) 1987-08-20

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