EP0143917B1 - Double-based incandescent lamp - Google Patents

Double-based incandescent lamp Download PDF

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Publication number
EP0143917B1
EP0143917B1 EP84110667A EP84110667A EP0143917B1 EP 0143917 B1 EP0143917 B1 EP 0143917B1 EP 84110667 A EP84110667 A EP 84110667A EP 84110667 A EP84110667 A EP 84110667A EP 0143917 B1 EP0143917 B1 EP 0143917B1
Authority
EP
European Patent Office
Prior art keywords
bulb
incandescent lamp
holders
bosses
section
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
Application number
EP84110667A
Other languages
German (de)
French (fr)
Other versions
EP0143917A3 (en
EP0143917A2 (en
Inventor
Dieter Blumberg
Dierk Dr. Weis
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 EP0143917A2 publication Critical patent/EP0143917A2/en
Publication of EP0143917A3 publication Critical patent/EP0143917A3/en
Application granted granted Critical
Publication of EP0143917B1 publication Critical patent/EP0143917B1/en
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/18—Mountings or supports for the incandescent body
    • H01K1/24—Mounts for lamps with connections at opposite ends, e.g. for tubular lamp

Definitions

  • the invention relates to an electric incandescent lamp, in particular a halogen incandescent lamp, with a tubular bulb made of high-melting glass, for example quartz glass, the ends of which are closed by crushing, and with a coiled filament which is held in the axis of the bulb by one or more tungsten wire holders , wherein the holder consist of a coiled section with a smaller diameter, which surrounds the filament, and a coiled section with a larger diameter, which bears against the inside of the bulb.
  • the holders serve as supports for the elongated filament and fix the latter in the axis of the lamp. During manufacture, however, there are tolerances in the inner diameter for the tubular piston, so that the holders usually do not lie firmly against the inner wall of the piston. This can damage or break the filament if the lamp is shaken.
  • DE-OS 2 420 342 describes an incandescent lamp in which the filament holder is fixed to the inner wall of the bulb by means of grooves in accordance with the helical shape of the outer holder sections.
  • the grooves are created by heating the bulb of the lamp in the area of the holder and then pressing the windings into the softened bulb wall due to their spring force.
  • the invention has for its object to provide a simple device for fixing the filament holder.
  • the electric incandescent lamp with the features mentioned in the preamble of the main claim is characterized according to the invention in that the individual holders are fixed by knobs between two turns of the holder section abutting the piston, the knobs consisting of local, radially inwardly projecting deformations of the piston wall.
  • knobs attached to the inside of the piston on one side they must have relatively large dimensions in order to bridge the tolerances in the inside pipe diameter. In some cases, this can have the disadvantage that the luminous element is moved slightly out of the axis of the bulb, and this results in unfavorable operating properties.
  • the knobs are only attached to the bulb after the lamp with the holders attached to it is inserted into the bulb. Therefore, if the section of the holder resting against the inner wall of the piston only consists of two closely spaced turns, the holder can tip over when the knobs are attached.
  • the part of the holder which lies on the inner wall of the vessel consists of two approximately ring-shaped turns of a small pitch, which are connected to one another by a piece of wire of a larger pitch.
  • the knobs then engage between the approximately ring-shaped turns and thus prevent tipping over.
  • the two holders 8 for the luminous element 3 at a distance of approximately 12 mm also consist of tungsten wire with a wire diameter of 261 ⁇ m.
  • coiled sections 9 consist of a coiled section 9 with two turns of smaller diameter - shown here only schematically - and a coiled section 10 with two ring-shaped turns with a small pitch and an outer diameter of 6.2 mm, which are connected with a piece of wire with a larger pitch .
  • the knobs 11 engage between the annular windings of a slight slope of the section 10 and thus fix the luminous element 3 in the tubular bulb 2.
  • the halogen incandescent lamp has a luminous flux of 16 Im / W with excellent color rendering when operated at 220 to 230 V AC.

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  • Resistance Heating (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Description

Die Erfindung betrifft eine elektrische Glühlampe, insbesondere Halogenglühlampe, mit einem röhrenförmigen Kolben aus hochschmelzendem Glas, z.B, Quarzglas, dessen Enden durch Quetschungen abgeschlossen sind, und mit einem gewendelten Leuchtkörper, der durch einen oder mehrere Halter aus Wolframdraht in der Achse des Kolbens gehalten wird, wobei die Halter aus einem gewendelten Abschnitt mit kleinerem Durchmesser, der den Leuchtkörper umfängt, und einem gewendelten Abschnitt mit größerem Durchmesser, der am Kolben innen anliegt, bestehen.The invention relates to an electric incandescent lamp, in particular a halogen incandescent lamp, with a tubular bulb made of high-melting glass, for example quartz glass, the ends of which are closed by crushing, and with a coiled filament which is held in the axis of the bulb by one or more tungsten wire holders , wherein the holder consist of a coiled section with a smaller diameter, which surrounds the filament, and a coiled section with a larger diameter, which bears against the inside of the bulb.

Die Halter dienen als Träger für den langgestreckten Leuchtkörper und fixieren letzteren in der Achse der Lampe. Bei der Fertigung ergeben sich jedoch für den röhrenförmigen Kolben Toleranzen im Innendurchmesser, so daß die Halter meist nicht fest an der Kolbeninnenwand anliegen. Dadurch kann es bei Erschütterungen der Lampe zu einer Beschädigung oder einem Bruch des Leuchtkörpers kommen.The holders serve as supports for the elongated filament and fix the latter in the axis of the lamp. During manufacture, however, there are tolerances in the inner diameter for the tubular piston, so that the holders usually do not lie firmly against the inner wall of the piston. This can damage or break the filament if the lamp is shaken.

In der DE-OS 2 420 342 wird eine Glühlampe beschrieben, bei der die Leuchtkörperhalter durch Rillen entsprechend der Wendelform der äußeren Halterabschnitte an der Innenwand des Kolbens fixiert werden. Die Rillen werden erzeugt, indem der Kolben der Lampe im Bereich der Halter erwärmt wird und die Windungen sich dann aufgrund ihrer Federkraft in die erweichte Kolbenwand eindrücken.DE-OS 2 420 342 describes an incandescent lamp in which the filament holder is fixed to the inner wall of the bulb by means of grooves in accordance with the helical shape of the outer holder sections. The grooves are created by heating the bulb of the lamp in the area of the holder and then pressing the windings into the softened bulb wall due to their spring force.

Der Erfindung liegt die Aufgabe zugrunde, eine einfache Vorrichtung zur Fixierung der Leuchtkörperhalter zu schaffen.The invention has for its object to provide a simple device for fixing the filament holder.

Die elektrische Glühlampe mit den im Oberbegriff des Hauptanspruchs genannten Merkmalen ist erfindungsgemäß dadurch gekennzeichnet, daß die einzelnen Halter durch Noppen zwichen jeweils zwei Windungen des am Kolben anliegenden Halterabschnitts fixiert werden, wobei die Noppen aus lokalen, radial nach innen ragenden Verformungen der Kolbenwand bestehen.The electric incandescent lamp with the features mentioned in the preamble of the main claim is characterized according to the invention in that the individual holders are fixed by knobs between two turns of the holder section abutting the piston, the knobs consisting of local, radially inwardly projecting deformations of the piston wall.

Bei einseitig an der Kolbeninnenwand angebrachten Noppen müssen diese relativ große Abmessungen aufweisen, um die Toleranzen im Rohrinnendurchmesser zu überbrücken. Dies kann in manchen Fällen den Nachteil haben, daß der Leuchtkörper leicht aus der Achse des Kolbens verschoben wird, und sich so ungünstige Betriebseigenschaften ergeben.In the case of knobs attached to the inside of the piston on one side, they must have relatively large dimensions in order to bridge the tolerances in the inside pipe diameter. In some cases, this can have the disadvantage that the luminous element is moved slightly out of the axis of the bulb, and this results in unfavorable operating properties.

Es hat sich daher als günstig herausgestellt, die Fixierung jedes Halters durch zwei Noppen innen an der Kolbenwand vorzunehmen, wobei sich die beiden Noppen diametral gegenüberliegen.It has therefore proven to be advantageous to fix each holder by means of two knobs on the inside of the piston wall, the two knobs being diametrically opposed.

Gleichwohl besteht auch die Möglichkeit, den Leuchtkörper durch nur jeweils eine Noppe pro Halter zu fixieren, wobei dann, um ein Verschieben des Leuchtkörpers zu vermeiden, die Noppen für benachbarte Halter jeweils diametral gegenüberliegen.Nevertheless, there is also the possibility of fixing the luminous element by only one knob per holder, in which case, in order to avoid displacement of the luminous element, the knobs for adjacent holders are diametrically opposite.

Die Noppen werden erst am Kolben angebracht, nachdem der Leuchtkörper mit den daran befestigten Haltern in den Kolben eingeschoben ist. Daher kann es, wenn der an der Kolbeninnenwand anliegende Abschnitt des Halters lediglich aus zwei dicht aneinanderliegenden Windungen besteht, bei der Anbringung der Noppen zu einem Kippen des Halters kommen.The knobs are only attached to the bulb after the lamp with the holders attached to it is inserted into the bulb. Therefore, if the section of the holder resting against the inner wall of the piston only consists of two closely spaced turns, the holder can tip over when the knobs are attached.

Um dies zu vermeiden, besteht der Teil des Halters, der an der Innenwand des Gefäßes liegt, aus zwei etwa ringförmigen Windungen geringer Steigung, die durch ein Drahtstück größerer Steigung miteinander verbunden sind. Die Noppen greifen dann zwischen die etwa ringförmigen Windungen ein und verhindern so ein Umkippen.In order to avoid this, the part of the holder which lies on the inner wall of the vessel consists of two approximately ring-shaped turns of a small pitch, which are connected to one another by a piece of wire of a larger pitch. The knobs then engage between the approximately ring-shaped turns and thus prevent tipping over.

Die Erfindung ist anhand der nachfolgenden Figuren näher veranschaulicht:

  • Figur 1 zeigt eine Draufsicht auf eine elektrische Glühlampe,
  • Figur 2 zeigt eine Seitenansicht einer elektrischen Glühlampe,
  • Figur 3 zeigt einen Schnitt an der Stelle AB durch eine elektrische Glühlampe.
The invention is illustrated in more detail with reference to the following figures:
  • FIG. 1 shows a top view of an electric light bulb,
  • FIG. 2 shows a side view of an electric light bulb,
  • FIG. 3 shows a section at position AB through an electric incandescent lamp.

In den Figuren 1 bis 3 ist eine zweiseitig gesockelte 200-W-Halogenglühlampe 1 gezeigt, dessen röhrenförmiger Kolben 2 aus Quarzglas einen inneren Durchmesser von 7,5 ± 1,1 mm aufweist. Der doppelt gewendelte Leuchtkörper 3 aus Wolfram mit einem Drahtdurchmesser von 62,8 11m besitzt einen Durchmesser von 756 11m und eine Länge von 58 mm. Er ist über zwei - hier nicht dargestellte Molybdän-Einschmelzfolien in den Quetschungen 4, 5 mit den Sockeln 6, 7 vom Typ R 7s - 15 verbunden. Die vier Halter 8 für den Leuchtkörper 3 im Abstand von etwa 12 mm bestehen ebenfalls aus Wolframdraht mit einem Drahtdurchmesser von 261 µm. Sie setzen sich aus einem gewendelten Abschnitt 9 mit zwei Windungen kleineren Durchmessers - hier nur schematisch dargestellt - und aus einem gewendelten Abschnitt 10 mit zwei ringförmigen Windungen geringer Steigung und einem Außendurchmesser von 6,2 mm, die mit einem Drahtstück größerer Steigung verbunden sind, zusammen. Die Noppen 11 greifen zwischen die ringförmigen Windungen geringer Steigung des Abschnitts 10 ein und fixieren so den Leuchtkörper 3 im röhrenförmigen Kolben 2.1 to 3 show a double-ended 200 W halogen incandescent lamp 1, the tubular bulb 2 of quartz glass of which has an inner diameter of 7.5 ± 1.1 mm. The double-coiled filament 3 made of tungsten with a wire diameter of 62.8 11m has a diameter of 756 11m and a length of 58 mm. It is connected to the bases 6, 7 of the type R 7s-15 via two molybdenum melting foils (not shown here) in the pinches 4, 5. The four holders 8 for the luminous element 3 at a distance of approximately 12 mm also consist of tungsten wire with a wire diameter of 261 μm. They consist of a coiled section 9 with two turns of smaller diameter - shown here only schematically - and a coiled section 10 with two ring-shaped turns with a small pitch and an outer diameter of 6.2 mm, which are connected with a piece of wire with a larger pitch . The knobs 11 engage between the annular windings of a slight slope of the section 10 and thus fix the luminous element 3 in the tubular bulb 2.

Die Halogenglühlampe weist bei Betrieb an 220 bis 230 V Wechselstrom einen Lichtstrom von 16 Im/W mit ausgezeichneter Farbwiedergabe auf.The halogen incandescent lamp has a luminous flux of 16 Im / W with excellent color rendering when operated at 220 to 230 V AC.

Claims (4)

1. An electric incandescent lamp (1), particularly a halogen incandescent lamp having a tubular bulb (2) made of high-melting glass, quartz glass for example, the ends of which are closed by deformations (4, 5), and having a coiled filament (3) which is retained in the axis of the bulb (2) by one or more holders (8) made of tungsten wire, where the holders (8) comprise a smaller-diameter coiled section (9) which surrounds the filament (3) and a larger-diameter coiled section (10) which contacts the bulb (2) internally, characterised in that the individual holders (8) are fixed by bosses (11) in each case between two turns of the holder section (10) in contact with the bulb, whilst the bosses consist of local deformations of the bulb wall projecting radially inwards.
2. An electric incandescent lamp (1) according to Claim 1, characterised in that the fixing of each filament holder (8) is effected in each case by two bosses (11) on the inside of the bulb wall which are located diametrically opposite one another.
3. An electric incandescent lamp according to Claim 1, characterised in that the fixing of each filament holder is effected by one boss in each case, the bosses for adjacent holders being located diametrically opposite one another in each case.
4. An electric incandescent lamp (1) according to one or more of Claims 1 to 3, characterised in that the section (10) of the holders (8) which is in contact with the inner wall of the vessel comprises two approximately annular turns of small pitch, which are connected together by a wire section of greater pitch, and the bosses (11) engage between the approximately annular turns.
EP84110667A 1983-09-07 1984-09-07 Double-based incandescent lamp Expired EP0143917B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19838325715U DE8325715U1 (en) 1983-09-07 1983-09-07 TWO-SIDED BASE BULB
DE8325715U 1983-09-07

Publications (3)

Publication Number Publication Date
EP0143917A2 EP0143917A2 (en) 1985-06-12
EP0143917A3 EP0143917A3 (en) 1986-01-08
EP0143917B1 true EP0143917B1 (en) 1988-05-18

Family

ID=6756843

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84110667A Expired EP0143917B1 (en) 1983-09-07 1984-09-07 Double-based incandescent lamp

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EP (1) EP0143917B1 (en)
DE (2) DE8325715U1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2705013B2 (en) * 1988-12-21 1998-01-26 ウシオ電機株式会社 Halogen incandescent bulb
JPH076614Y2 (en) * 1989-03-17 1995-02-15 ウシオ電機株式会社 Tube incandescent light bulb
DE4008365A1 (en) * 1990-03-15 1991-09-26 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh TWO-SIDED CRUSHED HALOGEN BULB
EP0446461B1 (en) * 1990-03-15 1995-07-12 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Halogen incandescent lamp having a single pinch
US5146134A (en) * 1990-03-15 1992-09-08 Patent Treuhand Gesellschaft Fur Elektrische Gluhlampen M.B.H. Halogen incandescent lamp, particularly for operation from power networks, and method of its manufacture
US5367220A (en) * 1990-03-15 1994-11-22 Patent-Treuhand-Gesellschaft fur Elektrische Gluhiampen mbH Electric lamp with a holding frame for a lamp filament
EP0616359B1 (en) * 1993-03-19 1996-07-03 Koninklijke Philips Electronics N.V. Electric incandescent lamp
DE19528686A1 (en) * 1995-08-03 1997-02-06 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Halogen light bulb
DE29612757U1 (en) * 1996-07-24 1997-11-20 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Electric light bulb closed on one side

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB856539A (en) * 1958-09-04 1960-12-21 Gen Electric Co Ltd Improvements in or relating to devices for producing light or infra-red radiation
US3160777A (en) * 1962-10-22 1964-12-08 Gen Electric Filament and reflector support for an elongated tube
DE2420342A1 (en) * 1974-04-26 1975-11-06 Patra Patent Treuhand HALOGEN BULB AND METHOD OF MANUFACTURING

Also Published As

Publication number Publication date
EP0143917A3 (en) 1986-01-08
DE3471403D1 (en) 1988-06-23
DE8325715U1 (en) 1985-02-21
EP0143917A2 (en) 1985-06-12

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