EP0914674B1 - Ampoule electrique - Google Patents

Ampoule electrique Download PDF

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Publication number
EP0914674B1
EP0914674B1 EP97951065A EP97951065A EP0914674B1 EP 0914674 B1 EP0914674 B1 EP 0914674B1 EP 97951065 A EP97951065 A EP 97951065A EP 97951065 A EP97951065 A EP 97951065A EP 0914674 B1 EP0914674 B1 EP 0914674B1
Authority
EP
European Patent Office
Prior art keywords
flattened
power supply
filament
lead wire
shaped
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
EP97951065A
Other languages
German (de)
English (en)
Other versions
EP0914674A1 (fr
Inventor
Rolf Minder
Rolf Kiesel
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 EP0914674A1 publication Critical patent/EP0914674A1/fr
Application granted granted Critical
Publication of EP0914674B1 publication Critical patent/EP0914674B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/02—Incandescent bodies
    • H01K1/16—Electric connection thereto
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/04—Electrodes; Screens; Shields
    • H01J61/06—Main electrodes
    • H01J61/067—Main electrodes for low-pressure discharge lamps
    • H01J61/0672—Main electrodes for low-pressure discharge lamps characterised by the construction of the electrode
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/18—Mountings or supports for the incandescent body

Definitions

  • the invention relates to an electric lamp according to the preamble of the claim 1.
  • Such an electric lamp is for example in the Japanese utility model 49-37 422.
  • This utility model describes the attachment a filament on a power supply wire that is a flattened, U-shaped formed end.
  • the two U-legs point in their connection area a reduced wire thickness and thereby form one on the helix diameter coordinated recording in which an uncoiled filament end is arranged. Outside the recording, the two U-legs touch, so that the holder for the uncoiled filament end is reminiscent of a needle eye.
  • German patent DE 690 735 describes an electric lamp with a Filament, flattened by pinching in a hook-shaped design End of the power supply wires is held.
  • the inner surfaces of the power supply wire hooks are provided with grooves, their dimensions and distances correspond approximately to the wire diameter.
  • the attachment and electric take place Contacting the incandescent filament with the help of power supply wires that a have a flattened U-shaped end.
  • the two U-legs of the U-shaped Power supply wire section form a gap in which a coiled end the filament is arranged.
  • the gap width is smaller than the outside diameter of the coiled filament end, so that the filament is jammed in the gap-shaped Recording is held.
  • the gap width is advantageously from 60 to 90 percent and preferably 70 percent of the outer diameter of the coiled Glühwendelendes. This ensures a secure fixation of the filament on the Power supply achieved with only slight spiral deformation.
  • the ends of the U-legs together While at one another embodiment for this purpose with the end of the free U-leg the non-flattened lead wire portion is welded.
  • the free U-leg has an angled End that is welded to the other U-leg. This allows the Gap width, given wire thickness and degree of flattening of the power supply wire, can be varied within certain limits. The one that protrudes beyond the U-legs The filament end is welded to the power supply wire. Thereby there is good electrical contact between the incandescent filament and the power supply wire achieved with low contact resistance.
  • the invention is particularly suitable for attaching double coiled filaments, the single coiled Have filament ends.
  • FIG. 1 shows a schematic representation of an electric light bulb with the helix attachment according to the invention.
  • This light bulb owns a glass lamp bulb 1, a bayonet base 2 and one in the lamp bulb 1 enclosed double-coiled filament 3, which means two power supply wires 4, 5 melted into a glass bead 6 is supported and electrically contacted.
  • the filament 3 To fix the filament 3 are the ends 4a, 5a of the power supply wires 4, 5 are flattened and U-shaped educated.
  • a simply coiled filament 3a Incandescent filament 3 is through the U-shaped section 4a, 5a of a power supply wire 4, 5 supported. So far all four exemplary embodiments are correct match.
  • FIG. 2 shows a first exemplary embodiment of the power supply wire 4 or 5 from Figure 1 with the coil end attached to it.
  • the end 41 this power supply wire is flattened and U-shaped, so that the U-shaped section 41 has a free U-leg 42 and one to the non-flattened section 43 of the power supply wire connected U-leg 44 has.
  • the end 42a of the free U-leg 42 is with through the non-flattened portion 43 of the power supply wire a weld spot 46 connected. This defines the two flattened U-legs 42, 44 a gap 45 in which a simply coiled End 3a of the filament 3 is arranged with a clamping effect.
  • the width of the Gap 45 is determined by the flattening of the power supply wire.
  • the gap width is about 70 percent of the outside diameter of the simply coiled filament end 3a. That means that simply coiled end 3a of filament 3 in gap 45 to approximately 70 percent of its original outer diameter compressed becomes.
  • the spiral end projecting beyond the U-shaped section 41 is welded to the power supply wire.
  • This type of helix attachment is suitable for filaments 3 with an outer diameter of the coiled Helical ends 3a of up to 700 ⁇ m.
  • the power supply wires 4, 5 have a diameter or a diameter in the non-flattened section 43 Wire thickness between 0.4 mm and 0.8 mm.
  • FIG. 3 shows a second exemplary embodiment of the power supply wire 4 or 5 with the spiral end attached to it.
  • the end 51 of the Power supply wire is flattened and U-shaped, so that the U-shaped section 51 a flattened free U-leg 52 and one connected to the non-flattened portion 53 of the power supply wire has flattened U-leg 54.
  • the end 52a of the free U-leg 52 is not flattened, however. It 52a has the same Diameter or the same wire thickness as the non-flattened section 53 of the power supply wire.
  • the non-flattened end 52a of the free U-leg 52 is through a weld spot 56 with the other U-leg 54 connected.
  • the width of the gap 55 is determined by the flattening of the power supply wire. She is so chosen that the gap width about 70 percent of the outer diameter of the simple coiled filament end 3a is. That means it's easy coiled filament end 3a in gap 55 to approximately 70 percent its original outer diameter is compressed.
  • the protruding beyond the U-shaped section 51 is with the Power supply wire welded. This type of helix attachment is suitable for incandescent filaments 3 with an outer diameter of the filament ends 3a of up to 700 ⁇ m.
  • the power supply wires 4, 5 ( Figure 1) have in non-flattened section 53 a diameter or a wire gauge between 0.4 mm and 0.8 mm.
  • Figure 4 shows a third embodiment of the power supply wire 4 or 5 with the spiral end attached to it.
  • the end 61 of the power supply wire is flattened and U-shaped, so that the U-shaped Section 61 a flattened free U-leg 62 and one connected the non-flattened section 63 of the power supply wire has flattened U-legs 64.
  • the end 62a of the free U-leg 62 is angled from this and with the end of the other U-leg 64 connected by a welding spot 66.
  • the two flattened U-legs 62, 64 a gap 65 in which a simple coiled end 3a of the filament 3 is arranged with a clamping effect.
  • the width of the gap 65 is here, in contrast to the two previous ones Embodiments, not only by the degree of flattening of the Power supply wire determines, but also depends on the length of the angled end 62a of the free U-leg 62 and from the angle, which includes the angled end 62a with the U-leg 62.
  • the width the gap 65 is adjusted by increasing this angle so that they roughly 70 percent of the outside diameter of the single-helix
  • the filament 3a is. That is, that which is jammed in the gap 65 simply coiled spiral end 3a to about 70 percent of its original outer diameter is compressed. That about the U-shaped section 61 protruding spiral end is with the U-leg 64 welded.
  • the angle between the free U-leg 62 and his angled end 62a is before forming the U-shaped section 61 and before pinching the filament end about 45 degrees.
  • 64 is the Angle widened.
  • This type of filament attachment is suitable for incandescent filaments 3 with an outer diameter of the coiled coil ends 3a up to 2mm.
  • the power supply wires 4, 5 ( Figure 1) have in non-flattened section 63 a diameter or a wire gauge between 0.4 mm and 0.8 mm.
  • FIG. 5 shows a fourth embodiment of the power supply wire 4 or 5 with the spiral end attached to it.
  • the end 71 of the power supply wire is flattened and U-shaped, so that the U-shaped Section 71 a flattened free U-leg 72 and one connected the non-flattened section 73 of the power supply wire has flattened U-leg 74.
  • the U-leg 74 is on his End 74a, which directly adjoins non-flattened section 73 of the power supply wire connects, stepped.
  • the end 72a of the free U-leg 72 is with the non-flattened section 73 of the power supply wire connected by a weld spot 76.
  • the two flattened U-legs 72, 74 a gap 75, in which has a simply coiled end 3a of the filament 3 with a clamping effect is arranged. That with the non-flattened section 73 of the power supply connected end of the U-leg 74 is formed as a step 74a, over that end of the U-leg 74 to the non-flattened section 73 is formed.
  • the width of the gap 75 is due to the degree of flattening of the U-shaped portion 71 of the power supply wire and determined by the level of step 74a. It is chosen so that the width of the Gap 75 approx. 70 percent of the outside diameter of the simply coiled The filament 3a is.
  • the Power supply wires 4, 5 have in the non-flattened section 73 a diameter or a wire thickness between 0.4 mm and 0.8 mm.
  • the wire thickness of the flattened U-shaped wire section 41, 51, 61, 71 is between 40 and 80 in all the exemplary embodiments explained above Percent of the wire thickness or the diameter of the non-flattened section 43, 53, 63, 73 of the power supply wire.
  • the invention is not limited to fastening and electrical contacting of double coiled filaments with single coiled Incandescent filament ends on power supply wires in electric light bulbs, but can also be used for fastening and electrical contacting of electrode filaments in fluorescent lamps or other low-pressure discharge lamps be applied. In addition, the invention also on single coiled filaments with coiled ends be applied.

Landscapes

  • Resistance Heating (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
  • Glass Compositions (AREA)
  • Liquid Developers In Electrophotography (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Coils Of Transformers For General Uses (AREA)

Claims (5)

  1. Lampe électrique comprenant une ampoule (1) de lampe et au moins un filament (3) incandescent disposé dans l'ampoule (1) de lampe, ainsi que des entrées (4, 5) de courant électrique qui sont reliées au filament (3) incandescent, dans laquelle
    au moins l'une des entrées (4, 5) de courant est constituée sous la forme d'un fil métallique d'entrée de courant,
    l'extrémité (41, 51, 61, 71) du fil (4, 5) d'entrée de courant est aplatie et constituée en forme de U, l'extrémité (41, 51, 61, 71) du fil d'entrée de courant en forme de U ayant une branche (42, 52, 62, 72) de U libre et une branche (44, 54, 64, 74) de U formée sur le tronçon (43, 53, 63, 73) du fil d'entrée de courant qui n'est pas aplati,
    une extrémité (3a) boudinée du filament (3) incandescent est disposée dans un logement (45, 55, 65, 75) entre les branches (42, 44, 52, 54, 62, 64, 72, 74) de U aplaties du fil (4, 5) d'entrée de courant, le logement (45, 55, 65, 75) étant constitué sous la forme d'un intervalle entre les branches (42, 44, 52, 54, 62, 64, 72, 74) de U aplaties, de largeur inférieure au diamètre extérieur de l'extrémité (3a) boudinée du filament (3) incandescent,
       caractérisée en ce que,
    la branche (42, 52, 62, 72) libre du U est soudée au fil (4, 5) d'entrée de courant et,
    l'extrémité du filament(3) incandescent qui dépasse de l'extrémité (41, 51, 61, 71) du fil d'entrée de courant en forme de U est soudée au fil (4, 5) d'entrée de courant.
  2. Lampe électrique suivant la revendication 1, caractérisée en ce que la largeur de l'intervalle (45, 55, 65, 75) représente de 60 % à 90 % du diamètre extérieur du filament (3) incandescent.
  3. Lampe électrique suivant la revendication 1, caractérisée en ce que l'épaisseur du fil des branches (42, 44, 52, 54, 62, 64, 72, 74) de U aplaties représente de 40 à 70 % de l'épaisseur de fil du tronçon (43, 53, 63, 73) de fil d'entrée de courant qui n'est pas aplati.
  4. Lampe électrique suivant la revendication 1 caractérisée en ce que la branche (52, 62) libre du U est soudée à l'autre branche (54, 64) de U.
  5. Lampe électrique suivant la revendication 1, caractérisée en ce que la branche (42, 72) libre de U est soudée au tronçon (43, 73) du fil (4, 5) d'entrée de courant, qui n'est pas aplati.
EP97951065A 1997-04-18 1997-11-11 Ampoule electrique Expired - Lifetime EP0914674B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19716158 1997-04-18
DE19716158 1997-04-18
PCT/DE1997/002639 WO1998048448A1 (fr) 1997-04-18 1997-11-11 Ampoule electrique

Publications (2)

Publication Number Publication Date
EP0914674A1 EP0914674A1 (fr) 1999-05-12
EP0914674B1 true EP0914674B1 (fr) 2003-06-11

Family

ID=7826849

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97951065A Expired - Lifetime EP0914674B1 (fr) 1997-04-18 1997-11-11 Ampoule electrique

Country Status (12)

Country Link
US (1) US6191526B1 (fr)
EP (1) EP0914674B1 (fr)
JP (1) JP2000512802A (fr)
KR (1) KR100393462B1 (fr)
CN (1) CN1106682C (fr)
AT (1) ATE242916T1 (fr)
CA (1) CA2255081C (fr)
DE (1) DE59710277D1 (fr)
ES (1) ES2201335T3 (fr)
HU (1) HU222632B1 (fr)
NO (1) NO321194B1 (fr)
WO (1) WO1998048448A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999060604A1 (fr) * 1998-05-20 1999-11-25 Koninklijke Philips Electronics N.V. Lampe incandescente a pinces de filament enroule sans mandrin
US6639364B1 (en) * 2000-06-29 2003-10-28 Koninklijke Philips Electronics N.V. Halogen incandescent capsule having filament leg clamped in press seal
EP2202781A1 (fr) * 2008-12-23 2010-06-30 Flowil International Lighting (Holding) B.V. Lampe à incandescence et support pour filament correspondant

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2145186A (en) 1938-07-01 1939-01-24 Gen Electric Connection for filament and lead wires
US2315504A (en) 1941-05-31 1943-04-06 Tung Sol Lamp Works Inc Miniature incandescent lamp
US3780333A (en) 1972-12-15 1973-12-18 Gte Sylvania Inc Lamp filament support means
JPH01130254A (ja) * 1987-11-16 1989-05-23 Canon Inc 文書処理装置
DE3907277A1 (de) * 1989-03-07 1990-09-20 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Quecksilberniederdruckentladungslampe
JPH05182641A (ja) * 1991-12-27 1993-07-23 Toshiba Lighting & Technol Corp 管球用電極及び白熱電球
JPH06231736A (ja) * 1993-02-09 1994-08-19 Toshiba Lighting & Technol Corp リード線および電球

Also Published As

Publication number Publication date
DE59710277D1 (de) 2003-07-17
CA2255081A1 (fr) 1998-10-29
WO1998048448A1 (fr) 1998-10-29
ES2201335T3 (es) 2004-03-16
NO321194B1 (no) 2006-04-03
EP0914674A1 (fr) 1999-05-12
CN1222249A (zh) 1999-07-07
HUP9901363A2 (hu) 1999-08-30
NO986003D0 (no) 1998-12-18
HU222632B1 (hu) 2003-09-29
US6191526B1 (en) 2001-02-20
CA2255081C (fr) 2006-07-25
JP2000512802A (ja) 2000-09-26
ATE242916T1 (de) 2003-06-15
KR100393462B1 (ko) 2003-09-19
KR20000016646A (ko) 2000-03-25
HUP9901363A3 (en) 2000-08-28
CN1106682C (zh) 2003-04-23
NO986003L (no) 1998-12-18

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