EP1542256B1 - Dispositif de fixation pour une ampoule de lampe et lampe pourvue d'un tel dispositif - Google Patents

Dispositif de fixation pour une ampoule de lampe et lampe pourvue d'un tel dispositif Download PDF

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Publication number
EP1542256B1
EP1542256B1 EP04028444A EP04028444A EP1542256B1 EP 1542256 B1 EP1542256 B1 EP 1542256B1 EP 04028444 A EP04028444 A EP 04028444A EP 04028444 A EP04028444 A EP 04028444A EP 1542256 B1 EP1542256 B1 EP 1542256B1
Authority
EP
European Patent Office
Prior art keywords
clip
lamp
holding device
base
bulb
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.)
Not-in-force
Application number
EP04028444A
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German (de)
English (en)
Other versions
EP1542256A2 (fr
EP1542256A3 (fr
Inventor
Joachim Arndt
Uwe Fidler
Markus Herb
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
Osram GmbH
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 Osram GmbH filed Critical Osram GmbH
Publication of EP1542256A2 publication Critical patent/EP1542256A2/fr
Publication of EP1542256A3 publication Critical patent/EP1542256A3/fr
Application granted granted Critical
Publication of EP1542256B1 publication Critical patent/EP1542256B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/30—Vessels; Containers
    • H01J61/34—Double-wall vessels or containers
    • 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
    • H01J5/48—Means forming part of the tube or lamp for the purpose of supporting it
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/42—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp
    • H01K1/46—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp supported by a separate part, e.g. base, cap
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/82—Lamps with high-pressure unconstricted discharge having a cold pressure > 400 Torr

Definitions

  • the invention relates to a holding device for fixing a lamp bulb and associated lamp according to the preamble of claim 1.
  • a lamp bulb and associated lamp according to the preamble of claim 1.
  • These are in particular Hochdrudcentladungslampen, preferably Metallhalogenidiampen, but also, for example, to halogen bulbs.
  • an elongate, in particular ceramic, discharge vessel is used as lamp bulb. Details of such a lamp are in the DE 103 36 282 disclosed.
  • a holding device for fixing a lamp bulb and associated lamp which is composed of three pistons It has a ceramic adapter which is mounted on a screw base. There is atmospheric pressure between the outer bulb and the outer bulb.
  • the EP 1 109 199 describes a single-capped high-pressure lamp in which the outer bulb is surrounded by a reflector.
  • the base is attached by crimping directly to the reflector neck.
  • the disadvantage of this is that the dimension of the neck of the reflector must be matched to the standard dimensions of the base.
  • the DE 38 37 511 and the DE 44 34 124 describe one-piece retaining clips for lamps.
  • the invention makes it possible to fix the lamp bulb of a lamp squeezed on one side by means of a holding device, also called a holding element, whose holding function is realized either by positive locking or by spring force.
  • a holding device also called a holding element
  • it is suitable for a spring clip that is designed as a clip mechanism.
  • the lamp is particularly suitable for simple mechanical and automatic production on production lines without hot processes such as smelting, welding or soldering.
  • long process times for example for drying, baking or pumping avoided.
  • the lamp bulb is cementless, by means of two clips, preferably made of metal or plastic, fixed.
  • the holding element consists of two elements.
  • a holding member of a part must be suitably shaped by means of members protruding from a plane to prevent tilting of the piston.
  • all design options are open to prevent tilting in a simple manner.
  • a first part is spoken as a main clip and a second part as a secondary clip or auxiliary clip.
  • the main clip resembles a hat having a raised portion as a sidewall, preferably cylindrical, and a circumferential brim serving as a support edge.
  • an anti-rotation mechanism is installed in the brim.
  • these are anti-twist zones that are notched or recessed at the brim.
  • at least one depression or dent and / or elevation or bulge can be provided in the lid.
  • the upper end of the raised part is a the lamp envelope corresponding recess introduced whose receiving geometry is adapted to the end portion.
  • the lid includes spring elements or form-locking elements as edges of the recess for the pinch zone of the lamp envelope.
  • the second namely the secondary clip, is typically similar in structure to the main clip, but its side wall is lower.
  • the secondary clip only consists of a brim and the cover integrated therein, wherein the lamp geometry corresponding receiving geometry for the end portion of the lamp envelope is maintained. So it is a clip without sidewall. If both clip elements have a sidewall, the height of the sidewall of the minor clip is always less than the height of the sidewall of the main clip. Normally, the diameter of the secondary clip is slightly smaller than that of the main clip to better fit the two parts. This is the easiest way to achieve that the two clip elements are intermeshable.
  • the attached clip mechanism can be both detachable and non-releasable, e.g. laser welded, be designed.
  • the so-joined connection of the two clip elements is mounted on an insulating attachment, preferably a ceramic adapter, wherein the attachment has anti-rotation means corresponding to the anti-rotation mechanism of the clip elements.
  • an insulating attachment preferably a ceramic adapter
  • the attachment has anti-rotation means corresponding to the anti-rotation mechanism of the clip elements.
  • the envelope part preferably consists of glass or, in the case of a reflector lamp, of aluminum, wherein it is equipped with a reflector contour.
  • the Hüllteil rests on the brim of the clip elements and by means of a staple tape, z. B. crimp ring, preferably aluminum, twist-proof connected to the attachment / adapter.
  • the lying between the Hüllteil and the essay or specifically the adapter ceramic brim of the clip combination is also fixed by the molding of the crimp ring.
  • the base preferably made of metal, fixed by deformation on the essay, which serves as a pedestal stone.
  • the electrical contact between external power supply of the lamp and the socket contacts is preferably made by an extension piece of a suitable conductor material.
  • the connections are made by deformation or clamping.
  • the sheath part is fastened by a bracket part bridging the distance between the lower plateau of the base stone and at least the upper contact surface of the edge.
  • the enveloping part and the clamp part may form a unit, wherein the mounting of the enveloping part is realized in the upper part of the base brick, for example by crimping.
  • the base has, in addition to the base stone on a conventional, the socket facing part, for example, a screw base approach or bayonet socket approach.
  • the lamp bulb that is to say, for example, the outer bulb or the discharge vessel in the absence of an outer bulb, is held in the central opening of the base by means of a holding device according to claim 1 mounted on the base.
  • edge of the Hüllteils and the segment of the base stone is equipped with a cooperating Verfitschutzmechanismus.
  • the clamp part consists of circumferentially distributed brackets or a circumferential clamp tape.
  • the staple band is a deformable ring, which is made in particular of metal or plastic, so that a very simple holder is possible because the staple tape is initially angled at the bottom, and pulled it up to stop on the pedestal to the projecting segment becomes.
  • the ring preferably made of aluminum, can be mechanically formed on the segment, and thus fix the edge of the Hüllteils.
  • a damping means is introduced between the clamp part and the upper contact surface of the edge of the enveloping part.
  • It is in particular a kind of O-ring, for example made of an elastomer.
  • the material of the Hüllteils preferably glass or aluminum, protected during the Anformreaes from damage.
  • Another advantage is that thereby the connection force between Hüllteil and segment remains free of play over the life of the lamp. Due to the damping ring, the tension of the clamp part can be increased safely and thus the connection can be made more reliable.
  • the base also has a barrel-facing part, which is at least partially connected as known per se by crimping with the base brick.
  • this part contains a standard screw thread.
  • the enveloping part may, for example, be a closed part such as another, but not vacuum-sealed, outer bulb, or else a calotte, which has a reflector contour.
  • a typical application is a metal halide lamp containing a filling with or without mercury content, possibly with inert starting gas, preferably noble gas.
  • An embodiment of a metal halide lamp 1 shows Fig. 1 and 2 , each rotated by 90 ° to each other.
  • a ceramic discharge vessel 2 which is closed on two sides, is arranged longitudinally in the lamp axis A. It is closely surrounded by an outer bulb 3, which is squeezed on one side and made of tempered glass or quartz glass.
  • a frame 4 with short and long supply line 5, 6 supports the discharge vessel 2 in the outer bulb 3.
  • the electrodes 7 in the interior of the discharge vessel are connected via feedthroughs 8 to the supply lines 5, 6.
  • the latter are in the region of a pinch 9, which closes the outer bulb 3, connected to external power supply lines 10.
  • the pinch 9 of the outer bulb sits over a cavity 11 of a base 12 made of ceramic and is supported by a holding element 13 made of metal.
  • the base stone can also be made of a different material, for example, a heavy-duty plastic.
  • the retaining clip 13 protrudes out of a plane of the base stone which forms an upper plateau 14 of a radially projecting disk-shaped segment 15.
  • the segment 15 is further designed with a side wall 16 and a lower plateau 17. It is seated on a neck portion 18, which holds a supervisedszuMFes part, here a screw base part 19 threaded.
  • the screw base 19 is secured by crimping 20 on the neck portion 18.
  • the power supply lines 10 are connected to electrical terminals 21 of the base of the neck portion (not visible).
  • the holding member 13 is made in two parts and consists, as in detail in the FIGS. 4 and 5 shown, from two joined spring clip elements, namely the main clip 34 and the seated subclip 35. Both are constructed in the manner of a cylinder hat. They each have a peripheral rim 36, a side wall 37 attached to its inner edge and a lid 38 terminating its free end.
  • the main difference between the main clip 34 and secondary clip 35 is the different height of the side wall 37. It is in the case of the main clip, in which the height H of the side wall is typically one to two cm, much larger than in the case of the auxiliary clip, in which the height HN of the sidewall is typically significantly smaller, and in particular a few mm, about 3 to 6 mm. Under certain circumstances, the sidewall of the auxiliary clip is completely omitted. In general, the height of the side wall depends on the light center of gravity of the piston to be inserted into the holding element. It may be possible that the secondary clip 35A does not require a side wall for setting a desired center of gravity, that is to say a flat disk 71 with corresponding recess 72 and anti-rotation 73, see FIG FIG. 13 , If the center of gravity is low, negative sidewall height may also be required, see FIG. 14 That is, the side wall 74 extends in the opposite direction, that is, into the opening 11 of the base brick.
  • Both elements have a VerFDschutzmechanismus, which is realized in the embodiment shown in a recess 39 which is punched out approximately rectangular in the brim. Both elements have this recess on each twice.
  • Both elements see also again FIG. 4 and 5 , also have an approximately rectangular recess 40 in the lid, which is adapted to the pinch 9 of the outer bulb.
  • FIG. 2 a further embodiment of a lamp is shown, the essential difference is the different height of the lid of the secondary clips. A detail is in Fig. 3 shown.
  • the upper plateau may have bumps 22, which cause a spacing of the upper plateau 14 to the enveloping piston 24.
  • it has a narrow upper contact surface 29, which is parallel to the lower contact surface 28 or obliquely aligned thereto.
  • FIG. 3 shows this area in magnification after a bracket part is attached. Shown is a clamp ring made of an aluminum strip 31, the lower edge 32 is angled at about 90 °, so that the tape 31 is pushed up to serving as a stop lower plateau 17 of the segment.
  • the clamping effect is achieved in that the upper edge 33, which was initially aligned straight, is subsequently rolled with effort, so that it rests on the elastomer ring 30.
  • the enveloping piston 24 is pressed against the upper contact surface 29 of the edge 27 via the elastomeric ring 30 with tension which leads to the deformation of the ring 30.
  • FIG. 4 For example, the main clip 34 explained above is shown in detail.
  • FIG. 5 For example, the auxiliary clip 35 explained above is shown in detail.
  • FIG. 6 and 7 another embodiment of a main clip 34 is shown. It differs essentially by the differently constructed anti-rotation of the first embodiment.
  • he is designed as a bump 43.
  • he is designed as a dent 44.
  • FIG. 8 the spring clip 13 associated base is shown. He fits in with the FIG. 7 shown main clip.
  • the base stone 12 has a central opening 11, and a disc-shaped or collar-shaped segment 15 with upper and lower plateau 14 and 17 and the side wall 16.
  • the collar 15 is seated on the neck portion 18.
  • Essential to understanding the anti-rotation is the dent 45, the two opposite sides of the collar is placed in the upper plateau.
  • This dent 45 is similar to the dent 44 in the resilient clip elements, both
  • the joined clip elements 34, 35 can also be joined to the base stone 12 by arranging in each case all three components with dents 44, 45 aligned with one another.
  • Fig. 9 shows a further form of the base block 12, in which the anti-rotation part is a bulge 46.
  • This bump 46 is either shaped like the bump 43 of the main clip in FIG. 6 , so that here again a twist protection is realized, which is virtually the positive to the in FIG. 8 represents represented solution by means of negative.
  • the bulge however, an even easier anti-rotation protection can be realized by the bulge 46 with the correspondingly adapted recesses 39 FIG. 4 and 5 can interact.
  • the solution with the bulges has the advantage that this easily a permanent connection of the resilient clip elements is possible by primary and secondary clip 34, 35 are connected to each other, for example by laser welding in the region of the two bumps 39.
  • a reflector lamp 60 is shown with a reflector part 61 as Hüllteil.
  • the contour of the reflector part 61 is made of aluminum.
  • On the base block 62 sits a separate collar ring 63, which is cylindrical in shape and partially surrounds the outer bulb 64, but ends below the discharge volume 65 of the discharge vessel 66.
  • An attachment is realized by crimping. More details can be found in DE-Az 103 36 282.7.
  • Fig. 11 shows a holding device not according to the invention, which consists of only one element.
  • the spring clip element 48 has the same structure as the main clip in FIG. 4 , The main difference, however, is that the spring tongues are bent differently. While in FIG. 4 the spring tongues are all bent when inserting the pinch of the lamp bulb from top to bottom and therefore for guiding and alignment of the lamp envelope a second clip, just the secondary clip, with a certain distance between the two cover levels is necessary, then a single clip 48, if the Lamp bulb is short and when two spring tongues 49 are bent from the outset upwards so that they are not bent during insertion of the piston down.
  • the two other spring tongues 50 are still straight before insertion of the piston, but may be bent to support already slightly downwards in advance. It is recommended for better axial alignment to use as a similar spring tongue pairs always diametrically opposite spring tongues.
  • main and secondary clip 34A In a particularly simple likewise not inventive form of FIG. 12a
  • the function of main and secondary clip is also united in a single spring clip 34A.
  • the clip is in principle designed as a main clip, with lid 38 as the first holding plane.
  • the second holding plane, which is normally formed by the lid of the secondary clip is now replaced by from the cylindrical part of the clip, so the side wall 37, punched and bent to spring elements 69.
  • FIG. 12b is very much like FIG. 12a but it shows a clip 80, in which the resilient elements in contrast to FIG. 12a Elements 81 of the side wall 83 are bent over again at their free ends.
  • the spring tongues 82 on the cover are already slightly bent downwards.
  • a single clip can then be used alone if the bulb to be held is very short. Nevertheless, it is advisable here to use a means for anti-rotation for attachment to the base stone, even if no joining with the secondary clip is required.
  • a second secondary clip can be used in addition to the first auxiliary clip.
  • the dimensions of the clip element are suitably matched to one another, in particular the diameter of the cylindrical side walls should be slightly different. It is particularly recommended a slightly conical shape of the side walls, which favors the stackability of multiple clip elements.

Landscapes

  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Claims (11)

  1. Dispositif de fixation (13) pour une ampoule de lampe, le dispositif de fixation (13) étant constitué de deux éléments d'attache, appelés ci-après attache principale (34) et attache secondaire (35), l'attache principale (34) possédant une couronne circulaire en tant que rebord périphérique (36) pourvu d'un bord intérieur et extérieur, au bord intérieur duquel, vu en coupe transversale essentiellement perpendiculairement au rebord, est raccordée une paroi latérale périphérique (37) de hauteur donnée H qui présente de préférence une conformation cylindrique, l'extrémité libre de celle-ci formant un couvercle (38) de fermeture, ledit couvercle comportant un évidement (40) destiné à recevoir une ampoule de lampe, l'attache secondaire (35) possédant elle aussi au moins un rebord périphérique (36) et un couvercle (38) sensiblement inspiré par l'attache principale, le rebord périphérique (36) de l'attache principale servant de surface d'appui au rebord (36) de l'attache secondaire située en dessous, la différence fondamentale entre attache principale et attache secondaire résidant dans la hauteur différente de la paroi latérale (37), l'attache secondaire étant en effet ou un disque plat sans paroi latérale ou possédant une paroi latérale dont la hauteur HN est inférieure à la hauteur H de la paroi latérale de l'attache principale, y compris les valeurs négatives de HN, et caractérisé en ce que, de manière à fixer l'ampoule de lampe sur l'attache principale et l'attache secondaire, chaque fois au moins quatre lames élastiques (41) font saillie dans l'évidement.
  2. Dispositif de fixation selon la revendication 1, caractérisé en ce que l'attache secondaire (35) possède une paroi latérale (37) avec une valeur positive de HN, et l'attache principale et l'attache secondaire sont emboîtées l'une dans l'autre.
  3. Dispositif de fixation selon la revendication 1, caractérisé en ce que les éléments d'attache (34, 35) possèdent des moyens (39 ; 44) pour un mécanisme de protection antitorsion l'un par rapport à l'autre.
  4. Dispositif de fixation selon la revendication 3, caractérisé en ce que le mécanisme de protection antitorsion (39 ; 44) est situé aux rebords (36) des deux éléments d'attache.
  5. Dispositif de fixation selon la revendication 1, caractérisé en ce que les deux éléments d'attache sont réalisés en métal ou matière plastique.
  6. Dispositif de fixation selon la revendication 4, caractérisé en ce qu'au moins l'un des moyens suivants est utilisé comme mécanisme de protection antitorsion : un évidement (39), une bosse (43), un enfoncement (44).
  7. Dispositif de fixation selon la revendication 2, caractérisé en ce que l'attache principale et l'attache secondaire sont emboitées l'une dans l'autre soit de manière amovible, soit de manière inamovible.
  8. Lampe électrique (1) à culot unique, en particulier lampe haute pression, comprenant une ampoule de lampe (3) fermée de manière étanche au vide, cette dernière étant entourée d'un élément enveloppant (24), un culot équipé de connexions électriques portant d'une part l'ampoule de lampe et d'autre part l'élément enveloppant, présentant les caractéristiques suivantes :
    a) le culot comporte un socle (12) réalisé en matériau isolant avec un trou central dans lequel est logée, sans mastic, une partie de l'ampoule de lampe à l'aide d'un dispositif de fixation ;
    b) le socle (12) possède un segment circulaire saillant radialement pourvu d'un plateau ;
    c) l'élément enveloppant possède côté culot un trou circulaire pourvu d'une surface de contact qui est adaptée au plateau du segment circulaire saillant radialement sur le socle ;
    d) l'élément enveloppant est fixé au culot ;
    caractérisée en ce que le dispositif de fixation (13) est réalisé selon l'une des revendications précédentes et est relié à une partie à fixer de l'ampoule de lampe, en particulier une partie d'extrémité réalisée sous forme de sertissage (9).
  9. Lampe selon la revendication 8, caractérisée en ce que l'ampoule de lampe est une enceinte de décharge ou une ampoule extérieure (3) dans laquelle est logée une enceinte de décharge (2).
  10. Lampe selon la revendication 8, caractérisée en ce que l'élément enveloppant est une ampoule fermée (24) ou un élément réflecteur (61) ayant un contour réflecteur.
  11. Lampe selon la revendication 8, caractérisée en ce que l'élément enveloppant est réalisé en verre ou aluminium.
EP04028444A 2003-12-12 2004-12-01 Dispositif de fixation pour une ampoule de lampe et lampe pourvue d'un tel dispositif Not-in-force EP1542256B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10358361 2003-12-12
DE10358361A DE10358361A1 (de) 2003-12-12 2003-12-12 Haltevorrichtung zur Fixierung eines Lampenkolbens und zugehörige Lampe

Publications (3)

Publication Number Publication Date
EP1542256A2 EP1542256A2 (fr) 2005-06-15
EP1542256A3 EP1542256A3 (fr) 2010-02-17
EP1542256B1 true EP1542256B1 (fr) 2013-02-13

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EP04028444A Not-in-force EP1542256B1 (fr) 2003-12-12 2004-12-01 Dispositif de fixation pour une ampoule de lampe et lampe pourvue d'un tel dispositif

Country Status (6)

Country Link
US (1) US7550908B2 (fr)
EP (1) EP1542256B1 (fr)
JP (1) JP4772319B2 (fr)
CN (1) CN100449884C (fr)
CA (1) CA2489750A1 (fr)
DE (1) DE10358361A1 (fr)

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CN104488062A (zh) * 2012-05-07 2015-04-01 皇家飞利浦有限公司 电灯及其组装方法
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Also Published As

Publication number Publication date
EP1542256A2 (fr) 2005-06-15
CN100449884C (zh) 2009-01-07
US20050127807A1 (en) 2005-06-16
DE10358361A1 (de) 2005-07-07
CN1655410A (zh) 2005-08-17
CA2489750A1 (fr) 2005-06-12
JP4772319B2 (ja) 2011-09-14
EP1542256A3 (fr) 2010-02-17
JP2005174936A (ja) 2005-06-30
US7550908B2 (en) 2009-06-23

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