EP1191573B1 - Kolbenlampe mit Vorrichtung zur Kurzschlussvermeidung - Google Patents

Kolbenlampe mit Vorrichtung zur Kurzschlussvermeidung Download PDF

Info

Publication number
EP1191573B1
EP1191573B1 EP01203529A EP01203529A EP1191573B1 EP 1191573 B1 EP1191573 B1 EP 1191573B1 EP 01203529 A EP01203529 A EP 01203529A EP 01203529 A EP01203529 A EP 01203529A EP 1191573 B1 EP1191573 B1 EP 1191573B1
Authority
EP
European Patent Office
Prior art keywords
filament
hooks
bulb
light bulb
base
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
EP01203529A
Other languages
English (en)
French (fr)
Other versions
EP1191573A1 (de
Inventor
Jacky Marchand
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
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 Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Publication of EP1191573A1 publication Critical patent/EP1191573A1/de
Application granted granted Critical
Publication of EP1191573B1 publication Critical patent/EP1191573B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/18—Mountings or supports for the incandescent body

Definitions

  • the present invention relates to a light bulb including a base to which is bonded a filament, for emitting light radiation, having windings arranged spirally around an axis of revolution, bulb further including a plurality of supports, each having a connected end to the base and another end provided with a hook in contact with one of the windings of the filament.
  • Such a bulb is sold by the applicant under the reference PL10044067.
  • the filament is held in position by means of a single metal support, one end of which is integral with the base and whose other end has a closed hook surrounding one of the filament windings, the two ends of the support being connected by a rod.
  • the known bulb is configured so that when the bulb is in its normal operating condition, the support rod is located below the filament. Now the Applicant has observed that the filament, when traversed by a current, tends to deform mechanically by developing a curvature moving down the ends of the filament on either side of the hook now in position said filament. Thus, several windings can come into contact with the support rod, creating a short circuit that can be destructive for the support and the filament itself.
  • EP0271858 discloses a bulb including a base to which is bonded a filament, for emitting light radiation, having windings arranged spirally about an axis of revolution, bulb further including a plurality of supports, each having an end connected to the base and another end provided with a hook in contact with one of the filament windings.
  • the supports are preferably arranged with a regular angular distribution around the filament.
  • the present invention aims to prevent any risk of short circuit related to deformation of the filament, by proposing a bulb in which the extent of deformation of the filament is limited.
  • a bulb according to the introductory paragraph is characterized in that the hooks are all located on the same side of the axis of revolution of the filament.
  • the multiplicity of supports provided by the invention allows a better hold in position of the filament and prevents the simultaneous contact of several of its windings with the same support.
  • Such an embodiment simplifies the manufacture of the supports, which can thus be constituted by a single rod provided with a plurality of hooks.
  • the realization of the connection between the supports and the base will also be simplified.
  • the supports are intended to be located above the filament when the bulb is in its normal operating conditions, the brackets of the supports are open hooks.
  • the hooks are open greatly simplifies the manufacture of the bulb. Indeed, when the hooks are closed, the filament must be somehow screwed into the openings of the hooks, which takes a non-negligible time which has repercussions on the manufacturing costs of the bulb.
  • the use of open hooks simply requires to put the windings on the hooks and thus reduces the manufacturing costs of the bulb
  • one end of the filament being secured to the base is connected to said base via an armature formed by a rod located outside a plane defined by the axis of revolution and points of contact between the hooks and the filament.
  • This embodiment of the armature ensures that it is outside a path that would follow, under the effect of the mechanical deformation observed for the known bulb, the windings of the filament if they they were kept in position. Such a choice prevents any risk of short circuit between the filament and the frame.
  • FIG. 1 shows schematically a known bulb in a configuration corresponding to its normal operating conditions.
  • This bulb has an SO plug and a TUB tube made of a transparent material, for example glass.
  • This tube encloses a filament FIL, intended to emit light radiation, having windings arranged in a spiral around an axis of revolution AX.
  • One of the ends of this filament FIL is linked to a base BA, the other end being connected to said base via an armature ARM, materialized by a metal rod disposed above the filament FIL.
  • the filament wire and the armature ARM thus form a current circuit connected to the plug SO.
  • the filament FIL is held in position by means of a single metal support SUP, one end of which is integral with the base BA and of which another end has a closed hook CH surrounding one of the windings of the filament FIL. , the two ends of the support SUP being connected by a rod disposed below the filament FIL.
  • the filament FIL when traversed by a current, tends to deform mechanically by developing a curvature moving down the ends of the filament FIL on either side of the hook maintaining in position said filament .
  • several windings can come into contact with the SUP support rod, creating a short circuit which can be destructive for the SUP carrier and the FIL filament itself.
  • FIG. 2 schematically represents an ampoule according to a preferred embodiment of the invention, in a configuration corresponding to its conditions normal operation.
  • the filament FIL is held in position by means of three hooks H1, H2, H3 connected to the base BA via a rod.
  • the invention allows a better hold in position of the filament FIL and prevents it from deforming downwards around the median hook H2.
  • the hooks H1, H2, H3 are all located above the filament FIL, which makes it possible to use only one rod to connect said hooks to the base BA, and decreases again the risks of short circuit related to a possible deformation of the FIL filament, such deformation being down.
  • the hooks H1, H2 and H3 are here open hooks, which greatly simplifies the manufacture of the bulb, since the filament may be placed on said hooks while it should be screwed into closed hooks.
  • the armature ARM is constituted by a rod located outside a plane defined by the axis of revolution AX and contact points between the hooks H1, H2, H3 and filament FIL. As a possible deformation of the filament FIL can in principle only occur in the plane defined by the axis of revolution AX and said contact points, the particular positioning of the armature ARM eliminates any risk of contact between said armature and windings of the filament FIL.

Landscapes

  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)

Claims (3)

  1. Kolbenlampe mit einem Sockel (BA), mit dem ein Glühfaden (FIL) verbunden ist, für die Ausstrahlung eines Lichtscheins, mit Wicklungen, die spiralförmig um eine Drehachse (AX) angeordnet sind, wobei die Kolbenlampe außerdem eine Vielzahl von Halterungen aufweist, die jeweils ein Ende aufweisen, das mit dem Sockel verbunden ist, und ein anderes Ende, das mit einem Haken (H1, H2, H3) verbunden ist, der mit einer der Wicklungen des Glühfadens in Kontakt ist, wobei die besagte Kolbenlampe dadurch gekennzeichnet ist, dass die Haken alle auf derselben Seite der Drehachse des Glühfadens befindlich sind.
  2. Kolbenlampe nach Anspruch 1, dadurch gekennzeichnet, dass die Halterungen unter normalen Funktionsbedingungen der Kolbenlampe vorgesehen sind, um über dem Glühfaden angebracht zu werden, wobei die Haken der Halterungen offene Haken sind.
  3. Kolbenlampe nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass ein Ende des Glühfadens fest mit dem Sockel verbunden ist, während das andere Ende des Glühfadens über einen Stift (ARM) mit dem besagten Sockel verbunden ist, angeordnet außerhalb der von der Drehachse und den Berührungspunkten definierten Ebene zwischen den Haken und dem Glühfaden.
EP01203529A 2000-09-25 2001-09-18 Kolbenlampe mit Vorrichtung zur Kurzschlussvermeidung Expired - Lifetime EP1191573B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0012166 2000-09-25
FR0012166 2000-09-25

Publications (2)

Publication Number Publication Date
EP1191573A1 EP1191573A1 (de) 2002-03-27
EP1191573B1 true EP1191573B1 (de) 2006-07-26

Family

ID=8854638

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01203529A Expired - Lifetime EP1191573B1 (de) 2000-09-25 2001-09-18 Kolbenlampe mit Vorrichtung zur Kurzschlussvermeidung

Country Status (5)

Country Link
US (1) US6717339B2 (de)
EP (1) EP1191573B1 (de)
JP (1) JP2002124215A (de)
CN (1) CN100334683C (de)
DE (1) DE60121693T2 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1326198C (zh) * 2001-08-21 2007-07-11 皇家菲利浦电子有限公司 带有防爆装置的灯
JP2009146731A (ja) * 2007-12-14 2009-07-02 Kahoku Lighting Solutions Corp 片口金型ハロゲン電球
JP5765354B2 (ja) * 2013-03-13 2015-08-19 岩崎電気株式会社 ハロゲンランプ

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3903177A (en) * 1970-01-22 1975-09-02 Chevron Res Resorcinol process
US3930177A (en) * 1972-06-06 1975-12-30 Westinghouse Electric Corp Single-ended incandescent lamp having a simplified filament-mount
DE2305960A1 (de) * 1973-02-07 1974-08-08 Patra Patent Treuhand Halogengluehlampe
US4208606A (en) * 1979-01-10 1980-06-17 Westinghouse Electric Corp. Filament-support means for a tubular incandescent lamp
US4384235A (en) * 1979-05-22 1983-05-17 Thorn Emi Limited Linear filament assembly with refractory insulating support rod for halogen lamp
EP0034030B1 (de) * 1980-02-06 1984-10-03 Thorn Emi Plc Leuchtdrahthalterung
US4835443A (en) * 1986-12-16 1989-05-30 Gte Products Corporation High voltage hard glass halogen capsule
DE3752258T2 (de) * 1986-12-16 1999-11-04 Gte Products Corp., Wilmington Halogenkolben aus Hartglas für Hochspannung
US4935662A (en) * 1988-08-31 1990-06-19 Gte Products Corporation Electric lamp having a coiled incandescent filament and filament movement restraint means
US4868451A (en) * 1988-12-16 1989-09-19 Gte Products Corporation Lamp filament support construction
JPH03295151A (ja) * 1990-04-11 1991-12-26 Matsushita Electron Corp 白熱電球
JPH04298961A (ja) * 1991-03-27 1992-10-22 Ushio Inc マウント組立体の製造方法
JP3116441B2 (ja) * 1991-07-30 2000-12-11 ウシオ電機株式会社 一端封止型白熱電球のマウント組立体
JPH097553A (ja) * 1995-06-23 1997-01-10 Toshiba Lighting & Technol Corp 白熱電球およびこれを用いた照明装置
JP3835772B2 (ja) * 1996-11-06 2006-10-18 桜井 裕美子 フィラメント取り付け方法

Also Published As

Publication number Publication date
EP1191573A1 (de) 2002-03-27
US20020053873A1 (en) 2002-05-09
DE60121693T2 (de) 2007-03-29
US6717339B2 (en) 2004-04-06
DE60121693D1 (de) 2006-09-07
CN100334683C (zh) 2007-08-29
CN1346145A (zh) 2002-04-24
JP2002124215A (ja) 2002-04-26

Similar Documents

Publication Publication Date Title
EP1191573B1 (de) Kolbenlampe mit Vorrichtung zur Kurzschlussvermeidung
FR2772983A1 (fr) Dispositif a ampoule a decharge electrique
WO1993000552A1 (fr) Dispositif de montage reglable d'un spot
FR2670961A1 (fr) Appareil muni d'un moteur electrique d'entrainement.
FR2565029A1 (fr) Lampe a reflecteur comportant un col perfectionne pour augmenter son flux lumineux utile
FR2716710A1 (fr) Dispositif de fixation d'une source lumineuse dans un support de réception d'un projecteur.
EP1286384A1 (de) Lampe mit explosionssicherer Vorrichtung
CA2328574C (fr) Ampoule electrique a miroir et rampe d'eclairage comportant au moins une telle ampoule
EP0565419A1 (de) Fahrzeugbeleuchtung mit Leuchtröhre
EP1061556B1 (de) Lampe für Scheinwerfer mit einem Reflektor
US9004704B1 (en) Electronic flash device
EP0466584B1 (de) Scheinwerfer
EP0424590A1 (de) Galvanoplastik-Vorrichtung
FR2625334A1 (fr) Mecanisme pour positionner l'extremite photoreceptrice d'un cable conducteur optique au foyer d'une lentille
FR2489539A1 (fr) Support de lampe pour appareil de projection
EP0170326A1 (de) Elektrische Glühlampe mit Rückstrahlerschirm
FR2775080A1 (fr) Appareil indicateur du type a bobines croisees
WO1995013563A1 (fr) Lecteur de microfiches
EP0393568A1 (de) Bauelementunterstützung für die Befestigung dieses Bauelements an einer Leiterplatte und Verfahren zur Verwirklichung und Verwendung einer solchen Unterstützung
JPH03216947A (ja) 管形白熱電球
EP0643410B1 (de) Relais
BE1010696A6 (fr) Armature pour eclairage.
FR2589984A1 (fr) Appareil d'eclairage encastrable et module d'eclairage utilisable dans un tel appareil
FR2615929A1 (fr) Feu de signalisation rond a lampe a decharge
FR3087070A1 (fr) Haut-parleur electrodynamique comportant un support elastique pour soutenir un conducteur souple

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20020927

AKX Designation fees paid

Free format text: DE FR GB

17Q First examination report despatched

Effective date: 20050223

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 60121693

Country of ref document: DE

Date of ref document: 20060907

Kind code of ref document: P

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20060906

REG Reference to a national code

Ref country code: GB

Ref legal event code: 746

Effective date: 20060906

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20070427

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20101129

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20110930

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20111012

Year of fee payment: 11

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20120918

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20130531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130403

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120918

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20121001

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 60121693

Country of ref document: DE

Effective date: 20130403