EP0802561A1 - Lampe halogène - Google Patents

Lampe halogène Download PDF

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Publication number
EP0802561A1
EP0802561A1 EP97105626A EP97105626A EP0802561A1 EP 0802561 A1 EP0802561 A1 EP 0802561A1 EP 97105626 A EP97105626 A EP 97105626A EP 97105626 A EP97105626 A EP 97105626A EP 0802561 A1 EP0802561 A1 EP 0802561A1
Authority
EP
European Patent Office
Prior art keywords
pinch
incandescent lamp
lamp according
halogen incandescent
power supply
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
EP97105626A
Other languages
German (de)
English (en)
Other versions
EP0802561B1 (fr
Inventor
Thomas Dr. Noll
Roland Stark
Josef Bauer
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
Priority claimed from DE29607132U external-priority patent/DE29607132U1/de
Priority claimed from DE29620098U external-priority patent/DE29620098U1/de
Application filed by Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Publication of EP0802561A1 publication Critical patent/EP0802561A1/fr
Application granted granted Critical
Publication of EP0802561B1 publication Critical patent/EP0802561B1/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
    • H01K1/62—One or more circuit elements structurally associated with the lamp
    • H01K1/66—One or more circuit elements structurally associated with the lamp with built-in fuse
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
    • H01J5/50—Means forming part of the tube or lamps for the purpose of providing electrical connection to it
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
    • H01J5/50—Means forming part of the tube or lamps for the purpose of providing electrical connection to it
    • H01J5/54—Means forming part of the tube or lamps for the purpose of providing electrical connection to it supported by a separate part, e.g. base
    • H01J5/58—Means for fastening the separate part to the vessel, e.g. by cement
    • H01J5/60—Means for fastening the separate part to the vessel, e.g. by cement for fastening by mechanical means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/40—Leading-in conductors

Definitions

  • the invention relates to a halogen incandescent lamp according to the preamble of claim 1.
  • Such a halogen incandescent lamp is known from US Pat. No. 4,132,922. These lamps may Because of the high operating voltage (approx. 110 to 240 V), form an arc discharge between the two adjacent power supplies. The power supply lines and in particular the foils can heat up so much that the adjacent pinch seal can no longer dissipate the heat sufficiently. In the final stage, this can cause the piston to explode. The lamp therefore contains an inherent fuse in the form of a U-shaped wire bracket which is embedded in the pinch by means of an additional film.
  • halogen incandescent lamp with inherent fuse is known from DE-GM 91 02 566.
  • the power supplies here consist of simply coiled sections which are embedded in the pinch, the core area of which leaves a tube-like cavity which acts as a blow-out channel in the event that an arc is formed.
  • the disadvantage is that care must be taken during the squeezing process to ensure that the cavity is created reliably.
  • the particular value of the invention is that an extremely reliable fuse can be achieved without special additional measures, which is also very easy to manufacture. With a suitable choice of the dimensions of the internal power supply and the geometry in the area of the pinch, any arc is reliably extinguished.
  • An arc arises from a short circuit between coil parts. This is often caused by touching between two filament legs (mainly in the case of U-shaped or V-shaped filaments) or by breaking the filament wire, in each case in lamp operation. Another cause is the burning of the filament at a critical thin point (hot spot) at the end of the service life, which usually happens during the switch-on process.
  • the coil material can burn off partially and eventually cause an arc between the two power supplies along the crimp edge. So high temperatures can occur in the pinch that the lamp explodes.
  • a reliable quenching of the arc can be achieved with the following arrangement: At least one of the inner power supply lines must not be a solid wire, but should have a maximum diameter of 130 ⁇ m.
  • the invention is therefore suitable for medium-voltage lamps, where wire diameters between 100 and 130 ⁇ m are frequently used. Especially it is well suited for high-voltage lamps using wires that are less than 80 ⁇ m thick.
  • the quenching mechanism is based on the fact that part of the wire material in the pinch evaporates and leaves a free capillary with the diameter of the current supply. The discharge continues to burn in this capillary. From an effective length of the free capillary of approximately 2 mm, the losses of the discharge plasma due to recombination on the wall of the capillary become so great that the discharge extinguishes very quickly by itself.
  • This mechanism works within a time of the order of less than 2 ms, ie within a fraction of a half-wave of the usual alternating frequency (50 to 60 Hz) of the network.
  • This narrow capillary also means that the high current density of 500 A and more that is customary for a typical arc cannot be achieved.
  • the discharge is not only low in current, but also time and current limited. It expires at the latest when the zero crossing is reached. A re-ignition of the arc in the next half-wave of the alternating current is practically impossible, since it is known that it would require even more favorable discharge conditions than when the ignition was started for the first time.
  • a specific advantage of a non-coiled wire compared to a single coil is that the mass of the power supply formed from it is significantly less with the same length embedded in the crimp. The evaporation of the wire material in the capillary therefore proceeds much faster. The arc extinguishes earlier and the response time of the inherent fuse is much shorter than with other fuses. In addition, the energy introduced into the arc is considerably smaller.
  • uncoiled wire in the following also means a wire which was originally simply coiled, but which has been drawn out so that an elongated, spirally wound wire is formed.
  • the pitch is typically 10 to 100 times the wire diameter.
  • the wire has then its original spiral shape is not yet complete lost, but the windings are pulled so far apart that, in contrast to the prior art, there is no longer any tube-like cavity when squeezing.
  • the wire length that is actually accommodated is therefore significantly longer than in the case of a completely uncoiled piece of wire, in which the wire length actually accommodated is identical to the squeezed-in wire length.
  • the minimum length of the internal power supply in the pinch is 2 mm. Generally this length is between 2 and 4 mm.
  • the extinguishing mechanism described above is useful if the distance d between the power supplies and the applied voltage V cooperate so that in the event of an arc, the field strength V / d acting there is greater than 100 V / cm.
  • the field strength is usually between 200 and 400 V / cm. In the case of lamps with a lower field strength, there is no need for this type of protection, since there the arc is safely extinguished by other mechanisms.
  • Typical values for the distance between the two power supplies are 5 to 8 mm.
  • the inner power supply preferably has a diameter of more than 15 microns.
  • the filament and the internal power supply can be made as a unit from a single wire, ie the inner power leads are the uncoiled filament ends.
  • the fuse arrangement described here has a different effect than previously known, in that the operating conditions for the continued existence of the arc are usually undershot already within the first half-wave after the arc has arisen.
  • the arc that has been generated extinguishes so quickly that heating of the foils and the crushing is hardly detectable.
  • the temperature increase is no more than 5 ° C.
  • both inner power supply lines are present as uncoiled sections.
  • only one of the two power supply lines can be an uncoiled wire section.
  • this embodiment can be applied to lamps pinched on one side with an axial luminous element, which are usually operated at mains voltages of approximately 110 V.
  • an axial luminous element which are usually operated at mains voltages of approximately 110 V.
  • advantageously only the end of the luminous element adjacent to the pinch is connected to the sealing film via a power supply in the form of an uncoiled section.
  • the other power supply which is led as a frame wire to the end remote from the pinch, is a solid wire.
  • the luminous element is subdivided into a plurality of luminous sections which are each subdivided by non-luminous sections.
  • quartz glass should preferably be understood to mean quartz glass with an SiO 2 content of at least 94% by weight (for example Vycor).
  • the filament is preferably held by heat-resistant holding means which can defy an arc, for example a solid wire frame or glass webs, which are formed from the material of the bulb.
  • the lamp according to the invention can be produced inexpensively, since fewer components are required and the production can be automated particularly well.
  • halogen incandescent lamp with a long service life (2000 hours) for general lighting is presented, which is characterized by improved operational safety and a previously unattained compactness.
  • the lamp according to the invention is suitable for direct operation at mains voltage, which should be understood to mean a range from approximately 80 V to 250 V. It is provided with a suitable base. For example, it can be equipped with a screw or pin or bayonet base. Typical wattages are 25 to 150 W. For general lighting purposes, the lamp squeezed on one side can be surrounded by an outer bulb. Due to its compactness, this lamp can also be used advantageously in reflectors (e.g. PAR lamps, aluminum-coated reflector lamps, cold light reflector lamps).
  • reflectors e.g. PAR lamps, aluminum-coated reflector lamps, cold light reflector lamps.
  • Fig. 1 shows a halogen lamp 1 for general lighting purposes with a power of 75 W, which is suitable for direct connection to the 230 V network. It has a cylindrical piston 2 made of quartz glass with an outer diameter of approximately 12.5 mm with an inner diameter of 10.5 mm (with a tolerance of 0.8 mm) and a total length of approximately 60 mm (previously 86 mm). One end of the piston 2 is shaped into a dome 3 which has a pump tip 4 in the center. The other end of the piston is closed with a pinch seal 5 to which a bayonet base 16 is attached.
  • the flask with a volume of 1.65 cm 3 is filled with an inert gas mixture of 80% Kr and 20% N 2 , to which a halogen addition of 0.005% CBrClF 2 is added.
  • the maximum outside diameter of the lamp is 18 mm.
  • the luminous element 6 is held by a frame 9, which consists of a support wire made of tungsten with a diameter 280 ⁇ m
  • the frame 9 is essentially bent in a plane which contains the lamp axis in such a way that a transverse part lies between its two legs 10 and 11, which lie axially parallel to one another on the inner wall 12 of the bulb 13, which spans the inside diameter of the piston, and further frame parts are designated by reference numerals 14a to 14f.
  • the two luminous coil sections 8 merge into short, about 4 mm long, uncoiled sections 19, which act as internal power supply lines.
  • the inner power supply lines 19 are melted into the pinch seal 5 over a length of 3 mm and welded there to sealing foils 20 made of molybdenum.
  • the wire diameter of the filament and the power supply is 36 ⁇ m.
  • an area 22 of approximately 2 ⁇ 2 mm is dabbed on each foil with a welding aid (platinum paste).
  • the power leads 19 protrude from the pinch seal only about 1 mm into the piston volume.
  • contact pins 21 are welded, which protrude beyond the end of the pinch seal 5 and are connected to the contact lugs 17 on the bayonet base 16.
  • FIG. 2 the structure of which essentially corresponds to the first exemplary embodiment, it is a 230 V lamp with a power between 25 and 60 W, the total length of which is 70 mm (instead of approximately 90 mm previously) is.
  • the luminous element including the power supply lines is dimensioned differently.
  • the wire diameter is approximately 15 to 45 ⁇ m depending on the power.
  • the luminous element 25 is bent in a U-shape.
  • the two legs of the luminous element, which run parallel to the lamp axis, are in turn subdivided into two double-coiled luminous sections 26, which are each connected to one another by single-coiled sections 27.
  • the connecting part 28 of the U is simply coiled. It is arranged transversely to the lamp axis in the vicinity of the pump tip 24. Its ends are angled by 90 ° and each extend to a section 26.
  • the luminous element is fixed by an oval glass web 30, which is formed from the material of the cob.
  • the connecting part 28 is squeezed in the glass web 30.
  • the luminous element 25 is fixed in the region of the simply coiled sections 27 by a further glass web 31, which has a circular cross section.
  • a screw base 32 is fastened to the pinch seal 29 of the piston, the contact surfaces 33 of which are connected in a known manner, but without interposed fuses, to the outer contact pins 35 of the piston via lead wires 34.
  • the effectiveness of the measure according to the invention is particularly impressively underlined by the fact that in the event of deliberate malfunction of a 75W / 12V lamp on the 220 V network, the arc was reliably extinguished and no bulb explosion occurred.
  • the arrangement according to the invention results in higher reliability, shorter response times and simpler and more cost-effective production with halogen incandescent lamps squeezed on one side for medium-voltage and high-voltage operation.
  • FIG. 3 shows a reflector lamp 40 with an operating voltage of 230 V and a power of 50 W.
  • the built-in lamp 41 itself is constructed similarly to that in FIG. 2. It has an outer diameter of approx. 13 mm. For better compactification, it has only a single glass web 42, which sits in the area of the piston crown. In this way, it has an overall length of only 38 mm, calculated from the pinch to the pump tip. The lamp can therefore be accommodated in a very compact reflector 43 made of glass with an outer diameter of 50 mm.
  • a perforated disk 44 made of sheet metal at the level of the pinch pin 45 serves for better fixation.
  • the reflector tapers towards the reflector neck 46 to an outer diameter of 20 mm. Its total length is 49 mm. It also has an effect the shown spiral design with two short parallel legs 47, which are close to each other, advantageously on the light distribution in the reflector. The dimensions of the two spiral legs are approx. 0.5 x 9.5 mm.
  • the reflector lamp has a glass base 48 formed directly on the reflector neck. This essentially consists of a flat end surface 49 at the end of the reflector neck.
  • the outer power supply lines 50 of the built-in lamp are led out through two openings and crimped into two contact pin sleeves 51.
  • the contact pin sleeves themselves are riveted into the openings.
  • the principle of this glass base is similar to that described in DE-GM 82 34 509.
  • this reflector incandescent lamp has a conventional screw base or bayonet base instead of the glass base.
  • FIG. 3 has particular advantages over known reflector lamps, since both the number of components (now six components, previously ten components including the intermediate part) can be reduced and the assembly technology can be considerably simplified. The new product can therefore be manufactured much more cost-effectively and time-saving.
  • the cover plate can also be dispensed with if the quartz glass is doped in a manner known per se in order to ensure the necessary UV protection.
  • the invention is not restricted to the exemplary embodiments shown.
  • it is also suitable for halogen incandescent lamps for mains operation at 110 V.
  • the two filament sections can be subdivided again.
  • the impact resistance of the filament can be increased Measures to be further improved.
  • the filling can also consist of other components known per se, for example CH 2 Br 2 can be used as halogen additive.
  • tubular fixtures made of quartz glass (glass webs), which are formed from the material of the bulb can be used for fixing the luminous element.
  • the luminous element is arranged axially and the power supply, which leads to its end on the pinch side, is melted into the pinch as an uncoiled section.
  • the invention provides an inexpensive halogen incandescent lamp with low power consumption down to 25 W for direct mains connection, as is of particular interest for general lighting.
  • Preferred power levels are a maximum of 250 W.
  • the invention is particularly advantageous for one-sided pinched halogen incandescent lamps with low power (25 to 75 W), since here the space-saving effect of the invention is most effective, particularly when using a glass or bayonet base.

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
EP97105626A 1996-04-19 1997-04-04 Lampe halogène Expired - Lifetime EP0802561B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE29607132U 1996-04-19
DE29607132U DE29607132U1 (de) 1996-04-19 1996-04-19 Halogenlampe
DE29620098U DE29620098U1 (de) 1996-11-20 1996-11-20 Halogenlampe
DE29620098U 1996-11-20

Publications (2)

Publication Number Publication Date
EP0802561A1 true EP0802561A1 (fr) 1997-10-22
EP0802561B1 EP0802561B1 (fr) 2000-07-19

Family

ID=26058875

Family Applications (2)

Application Number Title Priority Date Filing Date
EP97105626A Expired - Lifetime EP0802561B1 (fr) 1996-04-19 1997-04-04 Lampe halogène
EP97922834A Expired - Lifetime EP0839381B1 (fr) 1996-04-19 1997-04-14 Lampe a reflecteur

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP97922834A Expired - Lifetime EP0839381B1 (fr) 1996-04-19 1997-04-14 Lampe a reflecteur

Country Status (9)

Country Link
US (2) US6060820A (fr)
EP (2) EP0802561B1 (fr)
JP (2) JP4054086B2 (fr)
KR (1) KR100455460B1 (fr)
CN (1) CN1083146C (fr)
DE (2) DE59702042D1 (fr)
ES (1) ES2160351T3 (fr)
HU (2) HU220535B1 (fr)
WO (1) WO1997040511A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6060820A (en) * 1996-04-19 2000-05-09 Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh Reflector lamp
WO2000070652A1 (fr) * 1999-05-18 2000-11-23 Koninklijke Philips Electronics N.V. Lampe electrique a incandescence
WO2008145570A2 (fr) * 2007-05-25 2008-12-04 Osram Gesellschaft mit beschränkter Haftung Ensemble constitué d'une lampe et d'une douille de lampe
WO2010000325A1 (fr) * 2008-07-04 2010-01-07 Osram Gesellschaft mit beschränkter Haftung Dispositif d'alimentation en courant pour une électrode d'une lampe électrique équipée d'un tel dispositif d'alimentation en courant
EP2544213A1 (fr) * 2010-03-03 2013-01-09 Panasonic Corporation Lampe
DE102012219135A1 (de) 2012-10-19 2014-04-24 Osram Gmbh Reflektorlampe

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WO1999012187A1 (fr) * 1997-09-03 1999-03-11 Koninklijke Philips Electronics N.V. Lampe a incandescence
US6611102B2 (en) * 2000-03-10 2003-08-26 Matsushita Electric Industrial Co., Ltd. Tungsten-halogen light bulb, and reflector lamp using the same
US8114163B2 (en) * 2000-04-10 2012-02-14 Biomet Manufacturing Corp. Method and apparatus for adjusting height and angle for a radial head
US6536918B1 (en) * 2000-08-23 2003-03-25 General Electric Company Lighting system for generating pre-determined beam-pattern
US6653782B2 (en) * 2001-12-27 2003-11-25 Koninklijke Philips Electronics N.V. Fuse and safety switch for halogen incandescent lamps
US7227308B2 (en) * 2003-11-24 2007-06-05 General Electric Company Assembly for precision focus of compact PAR lamps
DE102004044364A1 (de) * 2004-09-10 2006-03-16 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Glühlampe
JP4492337B2 (ja) * 2004-12-14 2010-06-30 ウシオ電機株式会社 光源ユニット
DE102006014643A1 (de) * 2006-03-29 2007-10-04 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe mit Halteelement
DE102006020224A1 (de) * 2006-05-02 2007-11-08 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Reflektorvorrichtung für eine Beleuchtungsvorrichtung
DE102006049908A1 (de) * 2006-10-23 2008-04-30 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Elektrische Lichtquelle, insbesondere für den Einsatz in einem Reflektor
DE202007009060U1 (de) * 2007-06-28 2008-08-07 Osram Gesellschaft mit beschränkter Haftung Elektrische Verbindung zwischen wenigstens zwei Teilen und elektrisches Gerät mit einer derartigen Verbindung
US20110115372A1 (en) * 2009-11-17 2011-05-19 General Electric Company Electric lamp with pin connectors and method of manufacture
US8193689B2 (en) * 2010-10-11 2012-06-05 General Electric Company Metal halide lamp shrouding
FR3086808B1 (fr) * 2018-10-02 2021-10-08 Commissariat Energie Atomique Connecteur

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DE29607132U1 (de) * 1996-04-19 1996-07-04 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 81543 München Halogenlampe

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6060820A (en) * 1996-04-19 2000-05-09 Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh Reflector lamp
WO2000070652A1 (fr) * 1999-05-18 2000-11-23 Koninklijke Philips Electronics N.V. Lampe electrique a incandescence
WO2008145570A2 (fr) * 2007-05-25 2008-12-04 Osram Gesellschaft mit beschränkter Haftung Ensemble constitué d'une lampe et d'une douille de lampe
WO2008145570A3 (fr) * 2007-05-25 2009-04-16 Osram Gmbh Ensemble constitué d'une lampe et d'une douille de lampe
WO2010000325A1 (fr) * 2008-07-04 2010-01-07 Osram Gesellschaft mit beschränkter Haftung Dispositif d'alimentation en courant pour une électrode d'une lampe électrique équipée d'un tel dispositif d'alimentation en courant
EP2544213A1 (fr) * 2010-03-03 2013-01-09 Panasonic Corporation Lampe
EP2544213A4 (fr) * 2010-03-03 2013-09-11 Panasonic Corp Lampe
DE102012219135A1 (de) 2012-10-19 2014-04-24 Osram Gmbh Reflektorlampe
US10004134B2 (en) 2012-10-19 2018-06-19 Ledvance Gmbh Reflector lamp
US10594067B2 (en) 2012-10-19 2020-03-17 Ledvance Gmbh Reflector lamp

Also Published As

Publication number Publication date
KR19990028205A (ko) 1999-04-15
HUP9901460A3 (en) 2001-05-28
KR100455460B1 (ko) 2004-12-17
JPH1040879A (ja) 1998-02-13
US5883469A (en) 1999-03-16
HUP9700773A3 (en) 2000-02-28
EP0802561B1 (fr) 2000-07-19
ES2160351T3 (es) 2001-11-01
HU218813B (hu) 2000-12-28
EP0839381A1 (fr) 1998-05-06
JP4054086B2 (ja) 2008-02-27
HU9700773D0 (en) 1997-06-30
CN1083146C (zh) 2002-04-17
DE59703946D1 (de) 2001-08-09
JPH11508402A (ja) 1999-07-21
WO1997040511A1 (fr) 1997-10-30
EP0839381B1 (fr) 2001-07-04
HU220535B1 (hu) 2002-03-28
HUP9901460A2 (hu) 1999-08-30
US6060820A (en) 2000-05-09
HUP9700773A2 (en) 1997-12-29
DE59702042D1 (de) 2000-08-24
CN1188562A (zh) 1998-07-22

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