EP1684006A2 - Dispositif d'éclairage, en particulier pour tunnels - Google Patents

Dispositif d'éclairage, en particulier pour tunnels Download PDF

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Publication number
EP1684006A2
EP1684006A2 EP05027685A EP05027685A EP1684006A2 EP 1684006 A2 EP1684006 A2 EP 1684006A2 EP 05027685 A EP05027685 A EP 05027685A EP 05027685 A EP05027685 A EP 05027685A EP 1684006 A2 EP1684006 A2 EP 1684006A2
Authority
EP
European Patent Office
Prior art keywords
luminaire
lamp
ballast
latent heat
change material
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
EP05027685A
Other languages
German (de)
English (en)
Other versions
EP1684006A3 (fr
EP1684006B1 (fr
Inventor
Jürgen Klier
Kai Dr. Müller
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 EP1684006A2 publication Critical patent/EP1684006A2/fr
Publication of EP1684006A3 publication Critical patent/EP1684006A3/fr
Application granted granted Critical
Publication of EP1684006B1 publication Critical patent/EP1684006B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F21V29/51—Cooling arrangements using condensation or evaporation of a fluid, e.g. heat pipes
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/02—Arrangement of electric circuit elements in or on lighting devices the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
    • 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
    • F21V29/15—Thermal insulation
    • 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
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10—Outdoor lighting
    • F21W2131/101—Outdoor lighting of tunnels or the like, e.g. under bridges
    • 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

Definitions

  • the present invention relates to a luminaire and to its use for lighting tunnels.
  • the term light designates a lighting device with a lamp (light source) and other technical parts, such as a housing, electrical connections for the lamp and other.
  • lights are considered, which also include a ballast for the operation of the lamp, so an electrical circuit that is necessary for the operation of the lamp to a power source.
  • Luminaires are known in various forms, for example for general lighting, lighting of industrial plants or traffic areas.
  • lights are also used under circumstances that require a lingering for a certain time lighting in the event of a fire. This is especially true for tunnels.
  • the invention is based on the technical problem of specifying a lamp which is advantageously suitable for use under conditions under which the luminaire must continue to operate in the event of a fire for a certain period of time.
  • the invention is directed to a luminaire with a lamp and with a ballast for operating the lamp, characterized by a built-in the lamp, a phase change material containing latent heat storage to protect the ballast from heat, which at least partially shields the ballast to the outside, and their use for lighting a tunnel.
  • the basic idea of the invention is to provide a latent heat accumulator in a luminaire.
  • the latent heat storage device is characterized in that it contains a phase change material (short phase change material, PCM for short) provided for this purpose, that performs a phase transition, for example melts or vaporizes, in a relevant temperature range. In this phase transition, a so-called.
  • Latent energy for the phase transition is required, which does not make itself noticeable as such in a temperature increase.
  • the phase transition can take place without a temperature change or with a temperature change. In any case, the phase transition "absorbs" the latent energy without it expressing itself in a heat capacity corresponding increase in temperature.
  • Such latent heat storage for example, in the form of so-called.
  • Cold cuffs for cooling drinks or heat pad for Warming hands in coat pockets known. In the latter case, however, the latent heat output and non-absorption is used.
  • the energy absorbed by the heat conduction of the enclosure and otherwise supplied from outside must be absorbed to prevent excessive heating, in particular of the ballast.
  • the ballast is the most temperature-sensitive part of a lamp and in case of fire particularly cool.
  • a tunnel luminaire should be able to operate for at least one hour at an ambient temperature of 250 ° C. A longer operability at this temperature or a resistance to even higher temperatures is of course only an advantage. Also, lower requirements may exist in other applications.
  • the ballast in the lamp and, if necessary, the lamp and other lighting parts for a prolonged period of time remain at an operable temperature and continue to work.
  • the energies to be absorbed by phase transition are much larger than the usual heat capacity multiplied by a tolerable temperature rise relative to the required mass of the phase change material.
  • the invention provides a favorable combination of relatively effective heat protection on the one hand and not oversized size or not oversized weight of the lamp.
  • ballasts and / or lamps may be provided in the luminaire.
  • phase transition materials include water, paraffins, salt hydrates and their eutectic mixtures.
  • phase change materials should preferably be in thermal, in particular large, connection to the ballast.
  • the ballast should thermally isolated as possible with respect to the housing be so with smallest possible contacts and otherwise an air insulation layer or be mounted on intermediate insulating materials.
  • the latent heat storage should surround the ballast as possible, d. H. preferably at least 80% of the outer surface of the ballast. This area is meant in the sense of an envelope around the ballast, which can show in a particular case so relatively complicated forms.
  • the ballast is completely surrounded by the latent heat storage of mounting connections and lines apart.
  • a relatively large latent heat storage is only in partial thermal contact with the ballast, but cools the interior of the lamp as a whole. Such constructions may be simpler and would protect, in addition to the ballast, the lamp and other lighting components to some extent.
  • the latent heat storage generally requires a container for receiving the phase change material.
  • This container is preferably elastic when, during the phase transition, a volume change occurs to some extent. It may additionally or alternatively also have a compensation volume into which the phase transition material can expand.
  • a purging line preferably with a pressure relief valve, to be present in order to be able to discharge the gas volumes, which are then generally very large, to the outside.
  • This measure may be combined with the aforesaid, but in general elastic containers and compensating volumes for phase transitions into the liquid state and the discharge lines for phase transitions into the gaseous state will be considered.
  • the pressure relief valve prevents unwanted evaporation in continuous operation of the device without a fire and releases the gas only from a certain pressure, which is to be assumed only in case of fire.
  • Typical and preferred magnitudes for the suitable phase transition energy in a luminaire according to the invention are in the order of 0.1-5 kWh, more preferably above 0.2 or 0.3 kWh and / or below 3 kWh or 2 kWh or 1 kWh ,
  • Typical and preferred temperature ranges for the phase transition are between 50 ° C and 120 ° C.
  • the invention is particularly advantageous in the case of an electronic ballast, in short ECG.
  • ECGs are typically much more sensitive to heat than conventional ballasts with chokes or other non-electronic components.
  • a fluorescent lamp into consideration, which should be operated for reasons of economy with a ballast, but may also be a high-pressure mercury vapor lamp, high-pressure sodium vapor lamp or low-pressure sodium vapor lamp.
  • the luminaire according to the invention can have an electronic ballast mounted essentially within the latent heat accumulator, which is mounted in this form with the latent heat accumulator above the lamp and, if appropriate, a reflector of the lamp, an insulation distance in particular being maintained between the luminaire housing and the latent heat accumulator.
  • the latent heat storage can have a good thermal contact with a lamp reflector and thus cool the lamp via the reflector (via radiation exchange).
  • FIG. 1 shows a luminaire 1 according to the invention with a luminaire housing 2.
  • FIG. 1 shows only a section of the ceiling area of the luminaire housing 2, whereas FIG. 2 also shows side walls connecting thereto in cross section.
  • the luminaire housing is closed at the bottom by a disc 3 for light emission.
  • a fluorescent tube is arranged as a lamp 4, which extends below the vertical center of the lamp housing, in the width direction centric and parallel to the longitudinal direction of the lamp housing 2 elongated.
  • a parabola 5 extending therefrom obliquely downwards from two sides.
  • the parabolic reflector 5 runs up to the transitions between the pane 3 and the side walls of the housing 2.
  • the described parabolic shape lies in the sectional plane of the cross section 2, whereas the reflector 5 otherwise extends in an elongated manner parallel to the longitudinal direction of the housing 2 and to the lamp 4.
  • a latent heat accumulator 7 is mounted above the spacer pin 6, so that the parabolic reflector can be cooled by the spacer bolts 6 through the latent heat accumulator 7.
  • the vessel of the latent heat accumulator may also contain, for example, simple water, with a purge line 8 shown in the figures being added to the overpressure valves 9.
  • the pressure relief valve is usefully at the highest point of the container arranged. This one is also elastically constructed to be frost-proof. Furthermore, compensation volumes of, for example, about 20-30% of the container volume can be provided.
  • the latent heat accumulator 7 is preferably in one piece and contains in itself a cavity with an electronic ballast 10 of the operation of the lamp 4 via not shown in detail lines. It may be, for example, a square tube with inserted ballast or an elastic sheath around the ballast, the lines are guided through the frontal openings.
  • the invention has the function in the form of this embodiment, a heating of the lamp 1 in the event of a fire in a tunnel by a phase transition in the latent heat storage 7 for a period of at least 1 h of the electronic ballast 10 and thus prevent its functioning over the said hour sure.
  • the lamp 4 and the reflector 5 are significantly less sensitive to heat and must not be included in this protection. Thus, in an emergency for a certain time a lighting of the tunnel can be ensured, which is especially after the recent experience with severe tunnel gaps in tunnels of great importance.
  • the function of the invention will be illustrated by a few numerical examples.
  • the surface of the luminaire 1 can typically be 2 m 2 . Assuming an internal air insulation distance of 30 mm and a temperature difference of 200 ° C, the result is a heat input of 490 watts. If, with soot-blackened pane 3, a small light emission and thus an almost complete coupling in of the internal thermal power of the lamp 4 and of the ballast 10 are assumed, then about 60 watts (assuming a 54-watt lamp) are added. So 0.55 kWh have to be buffered.
  • the latent heat accumulator 7 as shown in the figures, be equipped with a blow-out and to prevent inadvertent evaporation in normal operation a pressure relief valve 9. The large volumes of water vapor produced do not make sense with compensating volumes.
  • Heat paraffin has a usable phase transition from the solid to the liquid state and is thereby frost-proof and maintenance-free, since it does not evaporate. A pressure relief valve and a blow-off line are therefore not necessary. It is also non-toxic, chemically inert, non-hazardous to water and has a flash point of about 300 ° C. It would require about 6.5 kg of heat with a melting point of 90 ° C or 7.3 kg with a melting temperature of 100 ° C, so compared to water significantly larger masses.
  • the mentioned salt hydrates barium hydroxide octahydrate and the eutectic mixture magnesium nitrate hexanitrate / lithium hydrate are considered. In this case, about 5.8 or about 7.9 kg are required. However, these materials are corrosive and should therefore not escape, but remain held in equalization volumes or elastic containers.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP05027685.6A 2005-01-19 2005-12-16 Dispositif d'éclairage, en particulier pour tunnels Expired - Lifetime EP1684006B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005002563A DE102005002563A1 (de) 2005-01-19 2005-01-19 Leuchte, insbesondere zur Tunnelbeleuchtung

Publications (3)

Publication Number Publication Date
EP1684006A2 true EP1684006A2 (fr) 2006-07-26
EP1684006A3 EP1684006A3 (fr) 2010-03-03
EP1684006B1 EP1684006B1 (fr) 2013-05-22

Family

ID=35672202

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05027685.6A Expired - Lifetime EP1684006B1 (fr) 2005-01-19 2005-12-16 Dispositif d'éclairage, en particulier pour tunnels

Country Status (3)

Country Link
EP (1) EP1684006B1 (fr)
DE (1) DE102005002563A1 (fr)
NO (1) NO20060226L (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2093484A1 (fr) * 2008-02-20 2009-08-26 Christian Bartenbach Lampe de tunnel
WO2011104308A1 (fr) * 2010-02-25 2011-09-01 Ibs Umwelt- Und Verkehrstechnik Gmbh Lampe
EP2455657A1 (fr) * 2010-11-18 2012-05-23 Harald Rosenitsch Lampe de sécurité DEL
WO2013192499A1 (fr) * 2012-06-22 2013-12-27 Osram Sylvania Inc. Luminaire en évidement partiel
US9121590B2 (en) 2011-03-30 2015-09-01 Osram Sylvania, Inc. Partially recessed luminaire

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3622109A1 (de) * 1986-07-02 1988-01-07 Promat Gmbh Leuchte fuer brandgefaehrdete raeume
US5852339A (en) * 1997-06-18 1998-12-22 Northrop Grumman Corporation Affordable electrodeless lighting
DE10149898B4 (de) * 2001-10-10 2006-02-09 Lmt Leuchten + Metall Technik Gmbh Feuergeschützte Leuchte und Anordnung
DE10216373A1 (de) * 2002-04-12 2003-10-30 Gessler Accumulatorentechnik G Leuchte

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2093484A1 (fr) * 2008-02-20 2009-08-26 Christian Bartenbach Lampe de tunnel
WO2011104308A1 (fr) * 2010-02-25 2011-09-01 Ibs Umwelt- Und Verkehrstechnik Gmbh Lampe
EP2455657A1 (fr) * 2010-11-18 2012-05-23 Harald Rosenitsch Lampe de sécurité DEL
US9121590B2 (en) 2011-03-30 2015-09-01 Osram Sylvania, Inc. Partially recessed luminaire
WO2013192499A1 (fr) * 2012-06-22 2013-12-27 Osram Sylvania Inc. Luminaire en évidement partiel

Also Published As

Publication number Publication date
DE102005002563A1 (de) 2006-07-27
NO20060226L (no) 2006-07-20
EP1684006A3 (fr) 2010-03-03
EP1684006B1 (fr) 2013-05-22

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