EP2501986A1 - Lampe à remplissage de gaz - Google Patents

Lampe à remplissage de gaz

Info

Publication number
EP2501986A1
EP2501986A1 EP11701815A EP11701815A EP2501986A1 EP 2501986 A1 EP2501986 A1 EP 2501986A1 EP 11701815 A EP11701815 A EP 11701815A EP 11701815 A EP11701815 A EP 11701815A EP 2501986 A1 EP2501986 A1 EP 2501986A1
Authority
EP
European Patent Office
Prior art keywords
gas
lamp
vessel
helium
thermal conductivity
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
EP11701815A
Other languages
German (de)
English (en)
Other versions
EP2501986B1 (fr
Inventor
Stefan Lorenz
Guenter Hoetzl
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.)
Ledvance 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 EP2501986A1 publication Critical patent/EP2501986A1/fr
Application granted granted Critical
Publication of EP2501986B1 publication Critical patent/EP2501986B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V31/00—Gas-tight or water-tight arrangements
    • F21V31/04—Provision of filling media
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
    • F21V29/506—Cooling arrangements characterised by the adaptation for cooling of specific components of globes, bowls or cover glasses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/20—Electroluminescent [EL] light sources

Definitions

  • the present invention relates to a lamp with GasFuel ⁇ lung according to the preamble of claim 1.
  • a gas-filled lamp is known from EP 1 471 564 A2.
  • the described therein LED bulb is formed from a solid light source on a support structure mon ⁇ advantage.
  • a translucent vessel around ⁇ closes the light source and support structure, and an electrical lead and return are guided in and out of the housing to supply the light source with electrical energy.
  • This well-known LED lamp uses the thermal conductivity of helium for efficient cooling of the LED, whereby the heat is transported via the helium filling to the vessel walls.
  • a disadvantage of helium filling is the high price of this gas, and cheaper gases, such as hydrogen and nitrogen, show a poorer heat conduction. Better heat conduction can be achieved if these gases are mixed with air ⁇ which, however, results in an explosive mixture, so it comes to unwanted vessel fractures.
  • helium places a high demand on the tightness of the vessel. Presentation of
  • the lamp is filled with a filling gas, which is a mixture of at least one gas with high heat ⁇ conductivity and at least one gas with a different physical property.
  • a filling gas which is a mixture of at least one gas with high heat ⁇ conductivity and at least one gas with a different physical property.
  • the gas is selected from the high conductivity Grup ⁇ pe helium and hydrogen, the use of helium as a better conductor of heat with inert properties is particularly preferred. It has been found that advantageously the proportion of the gas with high thermal conductivity 1-80%, preferably 1 - 10% and, ⁇ is in particular 8 and 10% in the fill gas mixture. In general it can be said that the proportion of the second component, ie the gas with egg ⁇ ner other physical property, 100% - is x (proportion of gas having a high conductivity).
  • a particular advantage of the present invention is that, for example, when helium is used as the high thermal conductivity gas, it is used in a relatively small volume, which remarkably reduces the cost of producing the lamp.
  • the gas with a different physical property which is present together with the gas of high thermal conductivity in the filling gas mixture, usually has a lower reactivity than the gas with high heat conductivity ⁇ speed.
  • optical light Variegated ⁇ statements such light filtering and improved light Leis ⁇ obligations can be achieved, for example.
  • a gas with other physical properties are nitrogen, argon, air, helium, neon, carbon dioxide, nitrogen dioxide or sulfur hexafluoride. If a gas helium chosen ⁇ to, the gas of the first component will not be helium.
  • the gas pressure in the vessel is in practice between 10 -2 and 1200 hPa, with a preferred gas pressure of between 10 "and 100 hPa is 1.
  • the solid light source of the invention is Lamp a light emitting diode (LED) or a solid-state laser.
  • LED light emitting diode
  • this is a chip that is mounted directly on a thermally conductive support.
  • the chip is not coated or sealed with an epoxy or other coating material so that there is direct contact with the fill gas mixture.
  • the lamp of the invention is surrounded by at least partially stabilized translucent vessel in which the solid light source and the Gregasgemisch are located.
  • a preferred embodiment for the vessel is made of glass.
  • containers made of synthetic material and ⁇ transparent and semi-transparent ceramics can be structured to borrow the light source a particular optical appearance to ver ⁇ .
  • the carrier can take various forms, such as a plate of various dimensions or a rod.
  • a preferred carrier preferably comprises a socket which is arranged between an electrical feed line and discharge line.
  • the solid light source such as an LED
  • the carrier may be formed of a board material.
  • FIG. 1 is a schematic longitudinal sectional view of an embodiment of the lamp according to the invention.
  • Fig. 2 is a schematic diagram of an embodiment of the present invention, wherein a plurality of LED light sources are arranged in series on a support.
  • the lamp comprises an LED light source 2, which is located on ei ⁇ NEM carrier. 3
  • Light source and carrier are mounted in a gas-tight vessel 4.
  • the vessel is at ⁇ least partially transparent to light.
  • the gas mixture 5 has contact-with the LED light source 2 and the vessel 4 and ge ⁇ optionally also with Carrier 3. More than half of the heat generated at the LED light source is directly transmitted via the path LED -> filling gas -> vessel or indirectly via the path LED -> carrier -> filling gas -> vessel via the filling gas 5 to the Transfer vessel wall.
  • the filling gas comprises a mixture of at least one gas having a high thermal conductivity and at least one gas having a different physical property.
  • helium or hydrogen can be used as the high thermal conductivity gas.
  • the gas having a different physical property may be, for example, stick ⁇ cloth, argon, air, helium, neon, CO 2, O 2, or SF.
  • Figure 2 shows a schematic representation of another embodiment of the lamp 1 according to the invention.
  • the vessel 4 is cylindrical. The diameter is 25mm.
  • the LEDs 2 are mounted in series on a support 3 and are the filling gas 5 ⁇ give.
  • the vessel is made of glass.
  • the carrier which is, for example, FR4 or MCPCB made of a platinum material is be ⁇ consolidates with wires holding the glass bulb so that the LEDs can illuminate the entire vessel wall directly or indirectly.
  • the carrier may also be attached to the end caps (not shown).
  • copper or a similar material that is highly thermally conductive may be used as the electrical lead and return.
  • the support structure may also include cooling elements.
  • the lamp according to the invention can also have further elements which are described, for example, in EP 1 471 564 A2.
  • Embodiment 1 In a lamp according to the invention a Browngemisch of helium / nitrogen (2) is ver ⁇ turns. The proportion of helium is 50%. The pressure in the lamp is 100hPa. It shows a good heat ⁇ conductivity with a high internal vessel pressure, whereby a low mechanical load is given. Furthermore, a lower helium consumption is compared with the previously known helium filled lamps. The advantageous ranges for quantitative Caribbeanset ⁇ Zung this gas mixture and the pressures are ⁇ 80% at 20% ⁇ He; 50hPa ⁇ P ⁇ 500hPa.
  • Embodiment 2 A filling gas mixture with He ⁇ lium / argon is used. The helium content in the filling gas mixture is 10%.
  • the internal pressure of the vessel was adjusted to lOOhPa ⁇ . It has been found that this Gasge ensures ⁇ mixing a high thermal conductivity with a high vascular internal pressure, which means a low mechanical load. In this embodiment, the helium consumption is even lower compared to the gas component with low reactivity.
  • the following ranges have proven to be advantageous with this filling gas mixture: 5% ⁇ He ⁇ 20%; 50hPa ⁇ P ⁇ 500hPa.
  • Embodiment 3 The gas mixture has the composition ⁇ reduction helium / argon, wherein the proportion of helium in the gas mixture is 10%.
  • the pressure is 10 hPa.
  • the partially liable before ⁇ areas here are as follows: 5% ⁇ He ⁇ 20%; lhPa ⁇ P ⁇ 50hPa.
  • Exemplary embodiment 4 A filling gas mixture of hydrogen / helium with a hydrogen content of 4 ⁇ 6 is used. The pressure is 10 hPa. It has been found that this filling gas mixture has an excellent heat ⁇ conductivity and the hydrogen remains inactive. The advantageous ranges for this Railgasge- mix are as follows: 0, 1% ⁇ hydrogen ⁇ 4%; 0, lhPa ⁇ P ⁇ 20hPa.
  • Exemplary Embodiment 5 A gas mixture of helium and air was used to fill an LED lamp. The proportion of helium in the gas mixture is 1%, the pressure is lOOhPa. It has with this gas mixture a good thermal conductivity with a high internal vessel pressure ge ⁇ shows. There is again a very low helium consumption. Compared to air increased réelleleitfä ⁇ ability is detected. The advantageous ranges are as follows: 0.1% ⁇ helium ⁇ 2%; 80hPa ⁇ P ⁇ 200hPa.
  • Exemplary Embodiment 6 A gas mixture of helium / nitrogen dioxide (NO 2 ) is used to fill the LED lamp.
  • the proportion of helium is 20%, the pressure is ⁇ lOOhPa.
  • This gas mixture exhibits a high thermal conductivity with a high internal vessel pressure, whereby an optical light change is observed.
  • this Gasge ⁇ mixing has the disadvantage that it is toxic, so that a complete sealing of the lamp must be guaranteed slightest ⁇ tet.
  • the advantageous ranges here are as follows: 20% ⁇ helium ⁇ 80%; lOhPa ⁇ P ⁇ 200 hPa.
  • Exemplary embodiment 7 A filling gas mixture of helium / sulfur hexafluoride (SFe) is used, the proportion of helium in the gas mixture being 20%.
  • the pressure is lhPa. With this gas mixture, a good thermal conductivity was found, at the same time the electrical breakdown strength is increased. There is a minimal gas consumption recorded.
  • Advantageous ranges have been as follows: 20% ⁇ helium ⁇ 80%; lOhPa ⁇ P ⁇ 200 hPa.
  • Embodiment 8 It uses a gas mixture of Heli to ⁇ / carbon dioxide (C0 2), wherein the proportion of He ⁇ lium 50%.
  • the pressure is 900hPa. It shows a significantly improved thermal conductivity with pressure compensation to the external pressure.
  • the advantageous ranges are as follows: 40% ⁇ helium ⁇ 70%; 800hPa ⁇ P ⁇ 1200hPa.

Abstract

L'invention concerne une lampe (1) présentant au moins une source lumineuse solide (2) montée sur un support (3), une enveloppe (4) au moins partiellement transparente, qui entoure de manière étanche aux gaz la source lumineuse et le support, ainsi qu'un mélange de gaz de remplissage (5) enfermé dans l'enveloppe. Le mélange de gaz de remplissage est un mélange constitué d'au moins un gaz à haute conductivité thermique et d'au moins un gaz présentant une autre propriété physique.
EP11701815.0A 2010-02-15 2011-01-27 Lampe à remplissage de gaz Active EP2501986B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010001931A DE102010001931A1 (de) 2010-02-15 2010-02-15 Lampe mit Gasfüllung
PCT/EP2011/051107 WO2011098358A1 (fr) 2010-02-15 2011-01-27 Lampe à remplissage de gaz

Publications (2)

Publication Number Publication Date
EP2501986A1 true EP2501986A1 (fr) 2012-09-26
EP2501986B1 EP2501986B1 (fr) 2020-12-02

Family

ID=43806814

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11701815.0A Active EP2501986B1 (fr) 2010-02-15 2011-01-27 Lampe à remplissage de gaz

Country Status (6)

Country Link
US (1) US8587186B2 (fr)
EP (1) EP2501986B1 (fr)
JP (1) JP3181659U (fr)
CN (1) CN102762912A (fr)
DE (1) DE102010001931A1 (fr)
WO (1) WO2011098358A1 (fr)

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JP5689524B2 (ja) * 2010-09-08 2015-03-25 浙江鋭迪生光電有限公司 ＬＥＤ電球及び４π出光可能なＬＥＤ発光ストリップ
SG185159A1 (en) * 2011-04-26 2012-11-29 Novalite Technology Pte Ltd Gas cooled light emitting diodes
US9410687B2 (en) 2012-04-13 2016-08-09 Cree, Inc. LED lamp with filament style LED assembly
US9234638B2 (en) 2012-04-13 2016-01-12 Cree, Inc. LED lamp with thermally conductive enclosure
US9951909B2 (en) 2012-04-13 2018-04-24 Cree, Inc. LED lamp
US9395051B2 (en) 2012-04-13 2016-07-19 Cree, Inc. Gas cooled LED lamp
US9310028B2 (en) 2012-04-13 2016-04-12 Cree, Inc. LED lamp with LEDs having a longitudinally directed emission profile
US9322543B2 (en) 2012-04-13 2016-04-26 Cree, Inc. Gas cooled LED lamp with heat conductive submount
US9395074B2 (en) 2012-04-13 2016-07-19 Cree, Inc. LED lamp with LED assembly on a heat sink tower
US9310065B2 (en) 2012-04-13 2016-04-12 Cree, Inc. Gas cooled LED lamp
US8757839B2 (en) 2012-04-13 2014-06-24 Cree, Inc. Gas cooled LED lamp
WO2014045489A1 (fr) * 2012-09-21 2014-03-27 パナソニック株式会社 Source de lumière d'éclairage et dispositif d'éclairage
JP5818167B2 (ja) * 2012-11-01 2015-11-18 岩崎電気株式会社 Ｌｅｄランプ
USD748296S1 (en) 2013-03-14 2016-01-26 Cree, Inc. LED lamp
US9052093B2 (en) 2013-03-14 2015-06-09 Cree, Inc. LED lamp and heat sink
DE202013009434U1 (de) 2013-07-12 2013-11-05 Vosla Gmbh Lampe
JP5999458B2 (ja) * 2013-10-11 2016-09-28 岩崎電気株式会社 気密封止形のｌｅｄランプ
CN103557456A (zh) * 2013-11-05 2014-02-05 深圳市裕富照明有限公司 高光效led灯
EP2993384B1 (fr) 2014-07-11 2019-04-24 vosla GmbH Dispositif d'eclairage en forme de bande, lampe et procede de fabrication de dispositif d'eclairage en forme de bande
US9401468B2 (en) 2014-12-24 2016-07-26 GE Lighting Solutions, LLC Lamp with LED chips cooled by a phase transformation loop
CA2980322C (fr) 2015-03-20 2018-03-27 Dengke Cai Lampe a del a enveloppe de verre
ITUB20152829A1 (it) * 2015-08-04 2017-02-04 Getters Spa Dosaggio di idrogeno in lampadine di illuminazione a LED
JP6028177B1 (ja) * 2015-12-25 2016-11-16 株式会社野田スクリーン 光源装置
US10535805B2 (en) 2017-01-13 2020-01-14 Intematix Corporation Narrow-band red phosphors for LED lamps
US20180204984A1 (en) * 2017-01-13 2018-07-19 Intematix Corporation Narrow-band red phosphors for led lamps
DE202017105803U1 (de) * 2017-09-25 2019-01-09 Rehau Ag + Co Leuchtvorrichtung
CN109882748A (zh) * 2017-12-05 2019-06-14 福建永德吉灯业股份有限公司 一种低光衰led玻璃球泡灯
WO2020069724A1 (fr) * 2018-10-01 2020-04-09 Flowil International Lighting (Holding) B.V. Source de lumière à del linéaire
US11342311B2 (en) 2019-03-18 2022-05-24 Intematix Corporation LED-filaments and LED-filament lamps utilizing manganese-activated fluoride red photoluminescence material
US11781714B2 (en) 2019-03-18 2023-10-10 Bridgelux, Inc. LED-filaments and LED-filament lamps
EP3942620A1 (fr) 2019-03-18 2022-01-26 Intematix Corporation Dispositif émettant de la lumière blanche encapsulé comprenant une structure de photoluminescence en couches
CN113841238A (zh) 2019-03-18 2021-12-24 英特曼帝克司公司 Led灯丝
US20240044481A1 (en) * 2022-08-05 2024-02-08 Metro Marine Llc Sealing a lighting fixture with dry gas

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Also Published As

Publication number Publication date
CN102762912A (zh) 2012-10-31
DE102010001931A1 (de) 2011-08-18
US20120306340A1 (en) 2012-12-06
WO2011098358A1 (fr) 2011-08-18
US8587186B2 (en) 2013-11-19
JP3181659U (ja) 2013-02-21
EP2501986B1 (fr) 2020-12-02

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