EP1975975A1 - Unité de construction pour une lampe électrique dotée de pistons extérieurs - Google Patents
Unité de construction pour une lampe électrique dotée de pistons extérieurs Download PDFInfo
- Publication number
- EP1975975A1 EP1975975A1 EP08102928A EP08102928A EP1975975A1 EP 1975975 A1 EP1975975 A1 EP 1975975A1 EP 08102928 A EP08102928 A EP 08102928A EP 08102928 A EP08102928 A EP 08102928A EP 1975975 A1 EP1975975 A1 EP 1975975A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- outer bulb
- lamp
- assembly according
- bulb
- capillary
- 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.)
- Withdrawn
Links
- 238000010276 construction Methods 0.000 title description 3
- 239000000919 ceramic Substances 0.000 claims abstract description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910000679 solder Inorganic materials 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 3
- 239000005341 toughened glass Substances 0.000 claims 1
- 239000011521 glass Substances 0.000 abstract description 8
- 230000001747 exhibiting effect Effects 0.000 abstract 1
- 230000035939 shock Effects 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000011195 cermet Substances 0.000 description 4
- 229910001507 metal halide Inorganic materials 0.000 description 4
- 150000005309 metal halides Chemical class 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000004323 axial length Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 241001156002 Anthonomus pomorum Species 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 239000005354 aluminosilicate glass Substances 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Images
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
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/36—Seals between parts of vessels; Seals for leading-in conductors; Leading-in conductors
- H01J61/361—Seals between parts of vessel
Definitions
- the invention relates to a structural unit for an electric lamp with an outer bulb according to the preamble of claim 1.
- Such lamps are in particular high-pressure discharge lamps or halogen incandescent lamps.
- WO-A 2006/0131202 describes a high pressure discharge lamp with an outer bulb, in which an outer bulb is connected to a base plate, which serves to carry out the power supply lines.
- the glass bulb is made in hard glass technology using aluminosilicate glass. This saves pinching in the outer bulb and reduces the length of the outer bulb.
- EP-A 1 492 146 From the EP-A 1 492 146 a manufacturing method for an electric lamp with an outer bulb is known in which the outer bulb does not completely surround the inner vessel.
- a variant with a completely surrounding the inner vessel outer bulb is, for example, in EP-A 465 083 specified. It tries to be at a Discharge vessel made of quartz glass to make an outer bulb so that can be radically eliminated on known pumping stem techniques.
- a manufacturing method for a high-pressure discharge lamp in which a ceramic discharge vessel is arranged in a shortened outer bulb of quartz glass by means of foil fusion.
- the object of the present invention is to provide a structural unit for an electric lamp, whose overall length is significantly reduced compared to conventional lamps, so that the construction of particularly compact light sources is made possible.
- Another task is the reduction of components and a faster production by avoiding lengthy processes.
- Another object is to provide a lamp that can be manufactured easily and inexpensively.
- the assembly can either be fitted directly with a suitable socket. It can alternatively and preferably be used in a reflector lamp or luminaire.
- a reduction in the axial length of an outer bulb is generally desirable for miniaturization of electric lamps, this is particularly true for high pressure discharge lamps such as metal halide lamps. This goal is particularly important for reflector lamps.
- the overall length of the high-pressure discharge lamp has to be reduced. This is necessary, for example, to comply with the standard lengths of the reflector lamps, or to use smaller reflectors, or to vary the center of gravity and to have more space for mounting and fixing available.
- the invention realizes a reduction of the outer bulb length such that frame components or external power supply lines are outside the outer bulb, because this does not cover the full length of the discharge vessel, so that the outer bulb takes over only the function of a thermal insulator or a protection of the discharge vessel.
- the outer bulb which is preferably embodied in quartz glass, encloses the ceramic discharge vessel of the high-pressure discharge lamp only insofar as it creates a defined environment.
- the peculiarity lies in the fact that the thermally formed outer bulb terminates at the level of the capillaries of the discharge vessel or a metallic or non-metallic, but electrically conductive connecting piece attached directly to the end of the capillary and forms a common sealing surface with the capillaries or the connecting piece.
- This sealing surface can be directly between the glass material of the outer bulb and the Capillary ceramic or the connector or indirectly created by a connecting glass solder.
- the outer bulb filling can optionally be vacuum, nitrogen (50 mbar - 800 mbar), argon (50 mbar - 800 mbar) or air (normal pressure, open system).
- the filling of the discharge vessel can take place before or after the joint has been produced.
- the shortening of the outer bulb reduces the overall length of the lamp, which can also be designed as a unit, so that the integration of a unit in reflectors and lights of very short length is possible.
- the reduction compared to the prior art is such that the connection between the electrode system, in particular the external power supply, and a possible frame of a lamp can be outside the outer bulb.
- better heat conduction is achieved at the melting of the electrode system in the ceramic capillary, especially since an extension of the capillaries due to the length savings and thus additional heat dissipation is possible.
- the generation of the sealing surface of the outer bulb directly to the ceramic capillaries - either by directly melting the end of the outer bulb or by using a further, possibly even multi-layer glass solder with a gradient of the coefficient of thermal expansion saves the previously necessary use of Mo films in Glasquetsch Kunststoff the outer bulb.
- the individual components outer bulb and discharge vessel can be made before filling the discharge vessel with metal halides, mercury and electrode systems, so that no thermal influence on the discharge vessel system and the melting takes place by subsequent manufacturing process steps.
- a sealed outer bulb it can be made open, ie without sealing to the outside atmosphere.
- the outer bulb serves only as Platzerschutz and optionally as an optical filter.
- a mechanical spring clip may be attached, which at the same time takes over the function of an ignition aid for fixing the discharge vessel to the outer bulb.
- Both sealing surfaces at the opposite ends of the outer bulb can be produced by thermally shaping the ends of the outer bulb. They can be produced in one step and on a production system. Transformer operations or separate pump stems are no longer required. The prerequisite for this is the sealing surface generation in a process chamber which is filled with the desired outer bulb gas. Furthermore, the symmetry allows a free connection of the frame or any mounting positions that can be adjusted depending on the burning position. Also possible is the composition of the outer bulb of two parts.
- Another advantageous geometric feature is the large distance between the power supply contacts and the freedom of design with respect to the frame and the power supply lines. As a result, high ignition voltages significantly greater than 2 kV are possible, which in turn enable the options of hot re-ignitability and fast light availability.
- the main features of the unit are the short, each about at the height of the capillary final outer bulb for length reduction and the possibility of using high ignition voltages due to the large distance between the two current carrying contacts.
- the new concept makes it possible to reduce the length of a lamp by an order of 10 mm, which corresponds to an order of magnitude of approximately 15% for a typical length of formerly 60 to 70 mm.
- FIG. 1a It consists of a ceramic discharge vessel 2, which is supported along a longitudinal axis A in an outer bulb 4 made of quartz glass.
- the discharge vessel 2 consists of a bulbous central part 3 and two attached thereto capillaries 5, as known. However, the concrete shape of the central part is irrelevant to the invention.
- the outer bulb has centrally a maximum diameter at the level of the discharge vessel. It has two ends 6 of reduced diameter, which extend in the direction of the capillaries 5. In the specific embodiment, the end 6 of the outer bulb sits directly on the capillary.
- the capillary 5 has outside, see detail FIG. 1b , a circumferential groove 10, in which the heated end 6 of the outer bulb is formed by means of an integrally formed at the end 6 locking lug 11 during the molding process.
- a mechanical easy mounting option for the outer bulb is created, wherein there is an atmosphere of air within the outer bulb.
- FIG. 2 shows a structural unit 1, in which the outer bulb 4 is vacuum-tightly connected to the discharge vessel 2. This is done by a multilayer layer 12 of glass solders, which is mounted between the end of the outer bulb and the capillary 5. In order to allow evacuation and filling of the outer bulb, the outer bulb has a pumping stem 13.
- the multilayered layer of glass solders consists of glass solders which are known per se, for example similar to those in EP0652586 described.
- FIG. 3 shows an embodiment of a structural unit 1, in which the end 15 of the outer bulb 4 is not guided directly to the capillary 5, but only in its immediate vicinity.
- the total length of the outer bulb can even be slightly longer than that of the discharge vessel 2, but also somewhat shorter.
- a special cup-shaped contact sleeve 17 attached at the end of the capillary of the discharge vessel. This has a thickened bottom 18, which receives the outer power supply in a bore 20.
- the wall 19 of the cup is located from the inside at the end 6 of the outer bulb.
- the cup-shaped contact sleeve is preferably made of molybdenum, as known per se in principle.
- a vacuum-tight seal between outer bulb and contact sleeve can be done for example by means of glass solder.
- Other ductile materials can be used for the contact sleeve, see for example US Pat. No. 3,685,475 ,
- FIG. 4 shows an embodiment of a structural unit 1 similar FIG. 1
- the outer bulb 30 is composed of two funnel-shaped parts 31, each consisting of funnel opening 36 and funnel neck 37 which were subsequently in the middle 38, ie the opening of the funnel, joined together.
- the neck 37 of the funnel does not have to be laboriously reduced to the diameter of the capillary 5 after being placed on the discharge vessel. Rather, the funnel neck is already adapted from the outset as well as possible to the diameter of the capillary. It is only necessary to create a connection, for example by means of moderate local heating in the form of an edge seam 38, between the edge surfaces of the two funnel openings 31.
- the holder on the discharge vessel can be created for example by a detent 39 at the end of the funnel neck.
- a pumping hole 40 is provided in the region of the peripheral seam, see FIG. 5 , and the detent 39 at the end of the funnel neck is connected by means of glass solder 41 with the end of the capillary 5.
- the discharge vessel has, for example, a filling of metal halides as known per se. Furthermore, two electrodes are arranged in the discharge vessel, between which the discharge arc burns.
- the two parts 31 of the outer bulb are advantageously identical and can be interconnected approximately at the level of the central part of the discharge vessel, as shown.
- the axial length of the two parts 31 is then approximately equal in length to a rough approximation.
- different lengths of the two parts 31 are possible.
- FIG. 6 shows a reflector lamp 45, which houses a unit as described above. It consists of a unit 1 with discharge vessel and outer bulb such as in FIG. 1 described.
- This assembly is housed in a reflector as Hüllteil, wherein the reflector has a concave front portion 46 and a neck portion 47 which terminates in a cover plate 48. In this plate, two contact pieces 49 are attached.
- Two frame wires 50 fix the assembly in the lamp by leading them to the two contact pins 49 in the plate at the end of the neck.
- the frame wires are fixed with putty 51.
- other mounting options are applicable.
- FIG. 7 shows a reflector lamp 52, in which the assembly 1 is mounted transversely to the longitudinal axis of the reflector. This assembly is possible because of the small length of the unit readily.
- the filling in the inner bulb is in the case of a filament as a lighting means a conventional filling, such as in EP-A 295 592 described.
- the dimensions of the lamps vary depending on geometric design variant and the lamp power.
- the minimum lamp length for a metal halide lamp with a ceramic discharge vessel and a power of 20 W is 34 mm.
- the minimum lamp length is about 41 mm at a power of 35 W.
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007015480 | 2007-03-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1975975A1 true EP1975975A1 (fr) | 2008-10-01 |
Family
ID=39502783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP08102928A Withdrawn EP1975975A1 (fr) | 2007-03-30 | 2008-03-26 | Unité de construction pour une lampe électrique dotée de pistons extérieurs |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20080238322A1 (fr) |
| EP (1) | EP1975975A1 (fr) |
| JP (1) | JP2008258161A (fr) |
| CN (1) | CN101276726A (fr) |
| CA (1) | CA2627711A1 (fr) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3685475A (en) | 1969-09-17 | 1972-08-22 | Neill K Banks Jr | Process for producing cup-shaped thin-walled metal wares |
| EP0295592A2 (fr) | 1987-06-13 | 1988-12-21 | Knut Otto Sassmannshausen | Lampe électrique |
| EP0465083A2 (fr) | 1990-06-27 | 1992-01-08 | General Electric Company | Lampe à décharge avec récipients à doubles parvis et procédé pour la fabriquer |
| EP0652586A1 (fr) | 1993-11-10 | 1995-05-10 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Lampe à décharge à halogénure de métal avec récipient de décharge en céramique et son procédé de fabrication |
| US20030117074A1 (en) * | 2001-12-21 | 2003-06-26 | Lapatovich Walter P. | Double jacketed high intensity discharge lamp |
| EP1439569A2 (fr) * | 2003-01-03 | 2004-07-21 | General Electric Company | Lampe a décharge comprenant un socle et procédé et fixation pour sa fabrication |
| WO2004083900A2 (fr) * | 2003-03-18 | 2004-09-30 | Philips Intellectual Property & Standards Gmbh | Lampe a decharge gazeuse |
| EP1492146A2 (fr) | 2003-06-05 | 2004-12-29 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Procédé pour la fabrication d'une lampe électrique avec ampoule exterieure |
| EP1659617A1 (fr) | 2004-11-18 | 2006-05-24 | Flowil Lighting International (HOLDING) B.V. | Source lumineuse |
| EP1720189A1 (fr) * | 2005-05-02 | 2006-11-08 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Lampe électrique à double paroi |
| WO2006131202A1 (fr) | 2005-06-09 | 2006-12-14 | Schott Ag | Dispositif lumineux comportant une ampoule exterieure, notamment lampe a decharge haute pression |
| DE102006045889A1 (de) | 2006-09-28 | 2008-04-03 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Verfahren zur Herstellung einer elektrischen Lampe |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5043623A (en) * | 1990-12-06 | 1991-08-27 | Gte Products Corporation | Reflector lamp assembly including metal halide arc tube |
| KR100464709B1 (ko) * | 2001-03-12 | 2005-01-06 | 가부시키가이샤 고이토 세이사꾸쇼 | 방전 램프 장치 |
| JP2006107961A (ja) * | 2004-10-06 | 2006-04-20 | Ushio Inc | 光源装置 |
-
2008
- 2008-03-26 EP EP08102928A patent/EP1975975A1/fr not_active Withdrawn
- 2008-03-28 CA CA002627711A patent/CA2627711A1/fr not_active Abandoned
- 2008-03-31 CN CN200810090416.1A patent/CN101276726A/zh active Pending
- 2008-03-31 US US12/078,381 patent/US20080238322A1/en not_active Abandoned
- 2008-03-31 JP JP2008091765A patent/JP2008258161A/ja active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3685475A (en) | 1969-09-17 | 1972-08-22 | Neill K Banks Jr | Process for producing cup-shaped thin-walled metal wares |
| EP0295592A2 (fr) | 1987-06-13 | 1988-12-21 | Knut Otto Sassmannshausen | Lampe électrique |
| EP0465083A2 (fr) | 1990-06-27 | 1992-01-08 | General Electric Company | Lampe à décharge avec récipients à doubles parvis et procédé pour la fabriquer |
| EP0652586A1 (fr) | 1993-11-10 | 1995-05-10 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Lampe à décharge à halogénure de métal avec récipient de décharge en céramique et son procédé de fabrication |
| US20030117074A1 (en) * | 2001-12-21 | 2003-06-26 | Lapatovich Walter P. | Double jacketed high intensity discharge lamp |
| EP1439569A2 (fr) * | 2003-01-03 | 2004-07-21 | General Electric Company | Lampe a décharge comprenant un socle et procédé et fixation pour sa fabrication |
| WO2004083900A2 (fr) * | 2003-03-18 | 2004-09-30 | Philips Intellectual Property & Standards Gmbh | Lampe a decharge gazeuse |
| EP1492146A2 (fr) | 2003-06-05 | 2004-12-29 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Procédé pour la fabrication d'une lampe électrique avec ampoule exterieure |
| EP1659617A1 (fr) | 2004-11-18 | 2006-05-24 | Flowil Lighting International (HOLDING) B.V. | Source lumineuse |
| EP1720189A1 (fr) * | 2005-05-02 | 2006-11-08 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Lampe électrique à double paroi |
| WO2006131202A1 (fr) | 2005-06-09 | 2006-12-14 | Schott Ag | Dispositif lumineux comportant une ampoule exterieure, notamment lampe a decharge haute pression |
| DE102006045889A1 (de) | 2006-09-28 | 2008-04-03 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Verfahren zur Herstellung einer elektrischen Lampe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101276726A (zh) | 2008-10-01 |
| JP2008258161A (ja) | 2008-10-23 |
| CA2627711A1 (fr) | 2008-09-30 |
| US20080238322A1 (en) | 2008-10-02 |
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