EP1191573B1 - Kolbenlampe mit Vorrichtung zur Kurzschlussvermeidung - Google Patents
Kolbenlampe mit Vorrichtung zur Kurzschlussvermeidung Download PDFInfo
- 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
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)
- 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.
- 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.
- 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.
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)
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)
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 |
-
2001
- 2001-09-18 EP EP01203529A patent/EP1191573B1/de not_active Expired - Lifetime
- 2001-09-18 DE DE60121693T patent/DE60121693T2/de not_active Expired - Lifetime
- 2001-09-21 JP JP2001289957A patent/JP2002124215A/ja not_active Withdrawn
- 2001-09-22 CN CNB011384743A patent/CN100334683C/zh not_active Expired - Fee Related
- 2001-09-24 US US09/961,985 patent/US6717339B2/en not_active Expired - Fee Related
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 |
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