EP1065699A1 - Incandescent lamp incorporating a tube-shaped glass vessel enclosing an axially accommodated filament - Google Patents

Incandescent lamp incorporating a tube-shaped glass vessel enclosing an axially accommodated filament Download PDF

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Publication number
EP1065699A1
EP1065699A1 EP00202142A EP00202142A EP1065699A1 EP 1065699 A1 EP1065699 A1 EP 1065699A1 EP 00202142 A EP00202142 A EP 00202142A EP 00202142 A EP00202142 A EP 00202142A EP 1065699 A1 EP1065699 A1 EP 1065699A1
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EP
European Patent Office
Prior art keywords
filament
incandescent lamp
sheet
bulb
flat sheet
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
EP00202142A
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German (de)
French (fr)
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EP1065699B1 (en
Inventor
Michel Morel
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.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips Electronics NV
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Application filed by Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Publication of EP1065699A1 publication Critical patent/EP1065699A1/en
Application granted granted Critical
Publication of EP1065699B1 publication Critical patent/EP1065699B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/02—Incandescent bodies
    • H01K1/16—Electric connection thereto

Definitions

  • the present invention relates to an incandescent lamp comprising a tubular glass bulb in which is axially arranged a filament, bulb, each end of which is hermetically sealed by a pinch applied around a metal sheet to which are fixed a outdoor power outlet and a connected indoor power outlet electrically to the filament.
  • Such a lamp is used inter alia for cooking food in so-called “glass-ceramic” plates, or for heating applications in industry.
  • a lamp according to the preamble above is known from the request for Patent FR 2 454 180.
  • An object of the invention is to allow the folding of the bulb without encounter a problem with the alignment of the filament in the bulb during the life of the lamp.
  • a second intermediate flat sheet is connected directly at the end of the filament, between the filament and the outlet inside, and the bulb is bent at the level of said second flat sheet.
  • a lamp comprises, in a known manner, a bulb in glass 3 of tubular shape, for example quartz glass for a lamp halogen type, in which a filament 4 is disposed axially, and each end of the bulb is hermetically closed by a glass pinch 5 applied around a metal sheet 1 to which are attached a plug external current 7 and an internal electrical outlet 6 connected electrically to the filament 4.
  • Pinch 5 is bonded by welding to the bulb tube 3.
  • a second intermediate flat sheet 2 is connected directly to the end of the filament, between the latter and the interior outlet.
  • the second intermediate flat sheet 2 is in a plane parallel to that of sheet 1, while in the lamp of Figure 1, the second intermediate flat sheet 2 and sheet 1 are in two planes perpendicular to each other: either of these two situations can be used.
  • the dimensions of the second flat sheet depend on the electrical current to pass, typically the length is 8mm, the width 4mm, and thickness 0.05mm.
  • the bulb of the lamp in Figure 3 is bent at each end, by heating, at the second flat sheet 2, which is itself quite thin to bend while bending the bulb tube. So the external socket 7 is directed in a direction perpendicular to the main axis of the lamp, which may be desired in some applications.
  • the filament 4, of the spiral type, is here welded at 9 by one of its turns on the second intermediate flat sheet 2. It is supported at regular intervals on its entire length by known supports 8.
  • the lamp has a second intermediate flat sheet and a fold at each end.

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  • Resistance Heating (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

The lamps filament is encased in a glass tube whose ends are hermetically sealed by pinching around a metallic sheet to which are fixed interior and exterior electrical current connections. A second intermediate flat sheet is directly connected to the end of the filament between the latter and the interior current connection. The glass tube is bent at the position of the second sheet. The spiral type filament has one of its coils soldered to the second plate..

Description

La présente invention concerne une lampe à incandescence comprenant une ampoule en verre de forme tubulaire dans laquelle est disposé axialement un filament, ampoule dont chaque extrémité est fermée hermétiquement par un pincement appliqué autour d'une feuille métallique à laquelle sont fixées une prise de courant extérieure et une prise de courant intérieure reliée électriquement au filament.The present invention relates to an incandescent lamp comprising a tubular glass bulb in which is axially arranged a filament, bulb, each end of which is hermetically sealed by a pinch applied around a metal sheet to which are fixed a outdoor power outlet and a connected indoor power outlet electrically to the filament.

Une telle lampe est utilisée entre autres pour la cuisson d'aliments dans des plaques dites "vitrocéramique", ou pour des applications de chauffage dans l'industrie.Such a lamp is used inter alia for cooking food in so-called "glass-ceramic" plates, or for heating applications in industry.

Une lampe selon le préambule ci-dessus est connue de la demande de brevet FR 2 454 180.A lamp according to the preamble above is known from the request for Patent FR 2 454 180.

Un objet de l'invention est de permettre le pliage de l'ampoule sans rencontrer de problème avec l'alignement du filament dans l'ampoule au cours de la durée de vie de la lampe.An object of the invention is to allow the folding of the bulb without encounter a problem with the alignment of the filament in the bulb during the life of the lamp.

A cet effet, une seconde feuille plate intermédiaire est connectée directement à l'extrémité du filament, entre ce dernier et la prise de courant intérieure, et l'ampoule est coudée au niveau de la dite seconde feuille plate.For this purpose, a second intermediate flat sheet is connected directly at the end of the filament, between the filament and the outlet inside, and the bulb is bent at the level of said second flat sheet.

Des modes particuliers de réalisation de l'invention apparaissent dans les revendications dépendantes 2 et 3.Particular embodiments of the invention appear in the dependent claims 2 and 3.

Ces aspects de l'invention ainsi que d'autres aspects plus détaillés apparaítront plus clairement grâce à la description suivante d'un mode de réalisation constituant un exemple non limitatif.

  • La figure 1 représente une lampe selon l'invention, avant que l'ampoule soit coudée.
  • La figure 2 représente, vue de dessus et vue de côté, l'extrémité de la lampe de la figure 1.
  • La figure 3 représente plus en détail l'extrémité de la lampe terminée.
    • These aspects of the invention as well as other more detailed aspects will appear more clearly from the following description of an embodiment constituting a nonlimiting example.
  • Figure 1 shows a lamp according to the invention, before the bulb is bent.
  • Figure 2 shows, top view and side view, the end of the lamp of Figure 1.
  • Figure 3 shows in more detail the end of the finished lamp.

    • Sur la figure 1, une lampe comprend, de façon connue, une ampoule en verre 3 de forme tubulaire, par exemple en verre de quartz pour une lampe de type halogène, dans laquelle est disposé axialement un filament 4, et chaque extrémité de l'ampoule est fermée hermétiquement par un pincement en verre 5 appliqué autour d'une feuille métallique 1 à laquelle sont fixées une prise de courant extérieure 7 et une prise de courant intérieure 6 reliée électriquement au filament 4. Le pincement 5 est lié par soudure au tube de l'ampoule 3. Une seconde feuille plate intermédiaire 2 est connectée directement à l'extrémité du filament, entre ce dernier et la prise de courant intérieure.In FIG. 1, a lamp comprises, in a known manner, a bulb in glass 3 of tubular shape, for example quartz glass for a lamp halogen type, in which a filament 4 is disposed axially, and each end of the bulb is hermetically closed by a glass pinch 5 applied around a metal sheet 1 to which are attached a plug external current 7 and an internal electrical outlet 6 connected electrically to the filament 4. Pinch 5 is bonded by welding to the bulb tube 3. A second intermediate flat sheet 2 is connected directly to the end of the filament, between the latter and the interior outlet.

    Sur la figure 2, la seconde feuille plate intermédiaire 2 est dans un plan parallèle à celui de la feuille 1, alors que dans la lampe de la figure 1, la seconde feuille plate intermédiaire 2 et la feuille 1 sont dans deux plans perpendiculaires l'un à l'autre : l'une ou l'autre de ces deux situations peuvent être utilisées. Les dimensions de la seconde feuille plate dépendent de l'intensité électrique à faire passer, de façon typique la longueur est 8mm, la largeur 4mm, et l'épaisseur 0.05mm.In FIG. 2, the second intermediate flat sheet 2 is in a plane parallel to that of sheet 1, while in the lamp of Figure 1, the second intermediate flat sheet 2 and sheet 1 are in two planes perpendicular to each other: either of these two situations can be used. The dimensions of the second flat sheet depend on the electrical current to pass, typically the length is 8mm, the width 4mm, and thickness 0.05mm.

    L'ampoule de la lampe de la figure 3 est coudée à chaque extrémité, par chauffage, au niveau de la seconde feuille plate 2, qui est elle même assez mince pour se courber pendant que l'on coude le tube de l'ampoule. Ainsi la prise de courant extérieure 7 est dirigée dans une direction perpendiculaire à l'axe principal de la lampe, ce qui peut être désiré dans certaines applications.The bulb of the lamp in Figure 3 is bent at each end, by heating, at the second flat sheet 2, which is itself quite thin to bend while bending the bulb tube. So the external socket 7 is directed in a direction perpendicular to the main axis of the lamp, which may be desired in some applications.

    Le filament 4, du type spiralé, est ici soudé en 9 par une de ses spires sur la seconde feuille plate intermédiaire 2. Il est soutenu à intervalles réguliers sur toute sa longueur par des supports 8 connus.The filament 4, of the spiral type, is here welded at 9 by one of its turns on the second intermediate flat sheet 2. It is supported at regular intervals on its entire length by known supports 8.

    En général, bien que ce ne soit pas obligé, la lampe comporte une seconde feuille plate intermédiaire et un pliage à chaque extrémité.In general, although it is not required, the lamp has a second intermediate flat sheet and a fold at each end.

    Il doit être clair que le verbe "comprendre" n'exclut pas la présence d'autres éléments ou étapes que celles listées dans une revendication.It should be clear that the verb "to understand" does not exclude the presence elements or steps other than those listed in a claim.

    Claims (3)

    Lampe à incandescence comprenant une ampoule en verre de forme tubulaire dans laquelle est disposé axialement un filament, ampoule dont chaque extrémité est fermée hermétiquement par un pincement appliqué autour d'une feuille métallique à laquelle sont fixées une prise de courant extérieure et une prise de courant intérieure reliée électriquement au filament, caractérisée en ce qu'une seconde feuille plate intermédiaire est connectée directement à l'extrémité du filament, entre ce dernier et la prise de courant intérieure, et en ce que l'ampoule est coudée au niveau de la dite seconde feuille plate.Incandescent lamp including a shaped glass bulb tubular in which is disposed axially a filament, bulb of which each end is hermetically closed by a pinch applied around a metal sheet to which an external power outlet is attached and an interior electrical outlet connected to the filament, characterized in that a second intermediate flat sheet is connected directly to the end of the filament, between the latter and the interior outlet, and that the bulb is bent at the level of said second flat sheet. Lampe à incandescence selon la revendication 1, caractérisée en ce qu'elle comprend une seconde feuille plate intermédiaire et un pliage à chaque extrémité du filament.Incandescent lamp according to claim 1, characterized in that it includes a second intermediate flat sheet and a fold at each end of the filament. Lampe à incandescence selon la revendication 1, caractérisée en ce que le filament du type spiralé est soudé par une de ses spires sur la seconde feuille plate intermédiaire.Incandescent lamp according to claim 1, characterized in that the filament of the spiral type is welded by one of its turns on the second sheet intermediate plate.
    EP00202142A 1999-06-28 2000-06-19 Incandescent lamp incorporating a tube-shaped glass vessel enclosing an axially accommodated filament Expired - Lifetime EP1065699B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    FR9908236A FR2795553A1 (en) 1999-06-28 1999-06-28 INCANDESCENT LAMP COMPRISING A TUBULAR SHAPE GLASS BULB IN WHICH A AXIS OF A FILAMENT IS ARRANGED
    FR9908236 1999-06-28

    Publications (2)

    Publication Number Publication Date
    EP1065699A1 true EP1065699A1 (en) 2001-01-03
    EP1065699B1 EP1065699B1 (en) 2005-04-06

    Family

    ID=9547378

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP00202142A Expired - Lifetime EP1065699B1 (en) 1999-06-28 2000-06-19 Incandescent lamp incorporating a tube-shaped glass vessel enclosing an axially accommodated filament

    Country Status (6)

    Country Link
    US (1) US6680572B1 (en)
    EP (1) EP1065699B1 (en)
    JP (1) JP2001060451A (en)
    CN (1) CN1263085C (en)
    DE (1) DE60019201T2 (en)
    FR (1) FR2795553A1 (en)

    Families Citing this family (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    GB2356543A (en) * 1999-11-19 2001-05-23 Gen Electric Circular filament heating lamp
    DE102004061464B4 (en) * 2004-12-17 2008-12-11 Schott Ag Substrate with fine laminar barrier protective layer and method for its production
    JP4930170B2 (en) * 2007-04-20 2012-05-16 ウシオ電機株式会社 Incandescent lamp

    Citations (5)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    GB2046513A (en) * 1979-04-11 1980-11-12 Philips Nv Halogen incandescent lamp
    EP0434373A2 (en) * 1989-12-21 1991-06-26 TUNGSRAM Részvénytársaság Inside current conductor for halogen-filled incandescent lamps especially lamps manufactured with curved tube enclosure and halogen-filled incandescent lamp made with the inside current conductor
    EP0438254A2 (en) * 1990-01-16 1991-07-24 Ge Lighting Limited Circular heater lamp
    JPH06231736A (en) * 1993-02-09 1994-08-19 Toshiba Lighting & Technol Corp Lead wire and electric lamp
    GB2305585A (en) * 1995-03-09 1997-04-09 Ge Lighting Ltd Heat source

    Family Cites Families (10)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    NL181765C (en) 1979-04-11 1987-10-16 Philips Nv HALOGEN LIGHT.
    JPH043391Y2 (en) * 1986-06-03 1992-02-03
    US5349265A (en) * 1990-03-16 1994-09-20 Lemelson Jerome H Synthetic diamond coated electrodes and filaments
    US5140217A (en) * 1990-09-07 1992-08-18 North American Philips Corporation Electric lamp having a push-in filament insert for filament mounting
    US5254902A (en) * 1991-12-27 1993-10-19 Gte Products Corporation Filament support for tubular lamp capsule
    TW297551U (en) * 1992-03-27 1997-02-01 Gen Electric Filament support for incandescent lamps
    FR2711014A1 (en) * 1993-10-04 1995-04-14 Gen Electric Quartz lamp with two ends and method of manufacturing this lamp.
    DE19812379A1 (en) * 1998-03-20 1999-09-23 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Halogen bulb with hermetically sealed envelope of transparent material which defines lamp axis
    JP3422253B2 (en) * 1998-04-30 2003-06-30 ウシオ電機株式会社 High pressure discharge lamp
    DE19842795A1 (en) * 1998-09-18 2000-03-23 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Fluorescent lamp

    Patent Citations (5)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    GB2046513A (en) * 1979-04-11 1980-11-12 Philips Nv Halogen incandescent lamp
    EP0434373A2 (en) * 1989-12-21 1991-06-26 TUNGSRAM Részvénytársaság Inside current conductor for halogen-filled incandescent lamps especially lamps manufactured with curved tube enclosure and halogen-filled incandescent lamp made with the inside current conductor
    EP0438254A2 (en) * 1990-01-16 1991-07-24 Ge Lighting Limited Circular heater lamp
    JPH06231736A (en) * 1993-02-09 1994-08-19 Toshiba Lighting & Technol Corp Lead wire and electric lamp
    GB2305585A (en) * 1995-03-09 1997-04-09 Ge Lighting Ltd Heat source

    Non-Patent Citations (1)

    * Cited by examiner, † Cited by third party
    Title
    PATENT ABSTRACTS OF JAPAN vol. 018, no. 595 (E - 1630) 14 November 1994 (1994-11-14) *

    Also Published As

    Publication number Publication date
    US6680572B1 (en) 2004-01-20
    FR2795553A1 (en) 2000-12-29
    CN1263085C (en) 2006-07-05
    EP1065699B1 (en) 2005-04-06
    JP2001060451A (en) 2001-03-06
    CN1284738A (en) 2001-02-21
    DE60019201D1 (en) 2005-05-12
    DE60019201T2 (en) 2006-03-09

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