EP1429072A2 - Appareil d'éclairage antidéflagrant - Google Patents

Appareil d'éclairage antidéflagrant Download PDF

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Publication number
EP1429072A2
EP1429072A2 EP03026406A EP03026406A EP1429072A2 EP 1429072 A2 EP1429072 A2 EP 1429072A2 EP 03026406 A EP03026406 A EP 03026406A EP 03026406 A EP03026406 A EP 03026406A EP 1429072 A2 EP1429072 A2 EP 1429072A2
Authority
EP
European Patent Office
Prior art keywords
lamp
battery
heating means
heating
explosion
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
EP03026406A
Other languages
German (de)
English (en)
Other versions
EP1429072A3 (fr
EP1429072B1 (fr
Inventor
Ralph Rohlfing
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.)
Aqua Signal AG
Original Assignee
Aqua Signal AG
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 Aqua Signal AG filed Critical Aqua Signal AG
Publication of EP1429072A2 publication Critical patent/EP1429072A2/fr
Publication of EP1429072A3 publication Critical patent/EP1429072A3/fr
Application granted granted Critical
Publication of EP1429072B1 publication Critical patent/EP1429072B1/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
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S9/00—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply
    • F21S9/02—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator
    • F21S9/022—Emergency lighting devices
    • 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
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • F21V23/0442—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
    • 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
    • F21V25/00—Safety devices structurally associated with lighting devices
    • F21V25/12—Flameproof or explosion-proof arrangements
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/20—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by toggle-action levers

Definitions

  • the invention relates to an explosion-proof lamp with fluorescent lamps and with a battery as an emergency power source.
  • Explosion-proof lights are used in environments with flammable gases. According to German and European standards, the explosion protection of a luminaire is described in various ways, for example with the information “Ex” (explosion-proof), “Ex e” (explosion protection with increased safety) and “Ex d” (explosion protection with pressure-resistant encapsulation).
  • the invention preferably relates to a luminaire with explosion protection with increased security.
  • the invention also relates to lights with a different type of explosion protection.
  • Fluorescent lamps as illuminants are well suited for use in explosion-proof luminaires because they only heat up slightly.
  • a disadvantage of a fluorescent lamp is that it depends on a minimum temperature. In unfavorable climatic conditions with strong frost, it can happen that the fluorescent lamps no longer function due to the temperature-dependent physical processes taking place inside, or at least no longer ignite when switched on. The result is a total failure of the lamp.
  • luminaires with a rechargeable battery are an emergency power source equipped.
  • the battery is located inside the lamp. In normal operation the Luminaire operated via an external mains voltage. If the battery fails, the battery will run out switched on for the supply of the lamps. At low temperatures, the Performance of the battery strongly. The function as an emergency power source is then endangered.
  • the object of the present invention is to provide a lamp of the type mentioned create that is functional even at exceptionally low temperatures.
  • the lamp according to the invention is characterized by heating means at least Warming up the lamps or the battery.
  • the heating means are advantageously switched on and operated together with the lamps. But one is also possible Advance of time of the heating means for heating part of the lamp before Switch on the illuminant.
  • the invention makes the temperature-dependent Working area of the lamp drastically expanded. In the event of a power failure, warm batteries remain even in spite of the lowest outside temperatures (the aim is security down to - 40 ° C) functioning.
  • the heating medium can also be supplied by the battery. However, this shortens the battery life. Therefore, one is preferred electrical switching of the lamp in such a way that the battery does not use the heating medium electrical power.
  • the lamp temperature-sensitive components such as electronic components.
  • heating means can be assigned to these.
  • the lamp has a housing with a base for receiving electronic components and a translucent lid.
  • the floor is deep-drawn and tub-like trained, as well as the lid. The latter is all around the floor sealed and with the floor by suitable holding and / or locking means connected.
  • the heating means are preferably between a wall of the housing and the component to be heated. This results in a relatively uniform Temperature profile within the component to be heated.
  • Electrical heating coils are preferably provided as the heating means. These are especially certified as explosion-proof, if possible in the same way as that Incidentally, lamp.
  • the heating means are temperature controlled.
  • a sensor can measure the temperature of the heating medium itself or the inside temperature of the Determine the luminaire and after reaching an upper limit, e.g. 20 ° C, the heating medium switch off and after reaching a lower limit, e.g. 10 ° C, again turn on.
  • a lamp 10 is for use as an explosion-proof emergency lamp (type Ex d) provided on drilling rigs. Luminaires of this type are generally known for example also for ships. The emergency function consists of the property of Maintenance of lighting despite a power failure. To this end a battery 11 is arranged in the lamp 10 as an emergency power source. If the Mains voltage should the lamp up to three hours - even with reduced luminosity - continue to shine. The lamp 10 shown here is based on this known lamp.
  • the lamp 10 essentially consists of a housing with a base 12 and a cover 13, two (not shown here) fluorescent lamps, the battery 11 and others mechanical, electrical and electronic components.
  • the lamp 10 is about 70 cm long, 12 cm wide and 10 cm high. About 40-50% of the height is from the floor 12 ingested. The rest of the height results from the dimensions of the cover 13.
  • a seal 15 is inserted, which on a Bottom flange 16 comes to rest.
  • Hinges 18, 19, 20 for the articulated connection of base 12 and cover 13 intended.
  • pivotable hooks 22 on both longitudinal sides 17, 21 provided the cover 13 with the bottom 12 in the area of the circumferential seal 15 press connection. Hooks 22 in the closed position are clearly visible in FIG. 4.
  • the Opened lid 13 with open hook 22 is shown in Fig. 6.
  • a support plate 24 parallel to this, just above a floor wall 23 arranged.
  • This has an essentially U-shaped (open to the cover 13) Cross-sectional profile with a profile base 25 and profile sides 26, 27.
  • the support plate 24 Components arranged, in particular the battery 11, which is close to the profile side 26 and near the profile base 25 extends in the longitudinal direction of the lamp 10.
  • the battery 11 sits at its ends in holders 28, 29. Approximately half the length of the battery 11 is one fork-shaped support 30 is provided. Brackets 28, 29 and support 30 are on the profile floor 25 mounted.
  • a central support 31 parallel to the support plate 24 provided.
  • the central support 31 extends parallel to the bottom wall 23 and just under above the circumferential bottom flange 16.
  • the Key switches 34, 35 are located between the frames 32, 33 and in the vicinity of End faces 36, 37 of the lid 13 are arranged.
  • An upper wall 38 of the cover 13 has on the inside downward-pointing styli 39, the key switch 34 35 when closing of the cover 13 and thus switch from "de-energized" to "energized” enable.
  • the lamp 10 shown here is for use under extreme climatic conditions Conditions, namely particularly low temperatures. Are aimed for Temperatures down to - 40 ° C. To enable operation even under these conditions the lamp 10 has heating means arranged in the housing. Specifically, it is about Heating coils 40, 41 and heating conductors 42, 43.
  • the heating means are in the same way as the luminaire (without heating medium) is designed and certified as explosion-proof.
  • the heating coils 40, 41 are immediately above and below the central support 31 (without distance to it) and held on it. Both heating coils 40, 41 are meandering, i.e. with successively always changing direction Radii of curvature. In this case, contact points 44 are formed between an exit a curvature and an entrance to the next but one curvature. In the field of Points of contact 44 are the heating coils 40, 41 on the center support 31 suitable holding means, clips or the like fixed. The radii of curvature are about 1.5 cm (inner radius).
  • the heating coils 40,, 41 and heating conductors 42, 43 are completely insulated, so that contacts are harmless with neighboring components (electrical).
  • the heating coils 40, 41 extend approximately over the length and the effective width of fluorescent lamps, see in particular FIGS. 3, 5 and 6.
  • the upper heating coil 40 lies directly on the fluorescent lamps or shows only a small amount compared to them Distance on. Because of this and relative to the housing central arrangement Interior of the housing through the heating coils 40, 41 effectively and quickly warmed up or can be at a significantly higher temperature in relation to Outside temperature can be kept. At the same time, the fluorescent lamps are special warmed.
  • the heating conductors 42 are arranged in the base 12, namely completely revolving and on the profile floor 25, in the area of the transition between the profile floor 25 and the Profile pages 26, 27. At the same time, the heating conductor 42 lies with a large part of its length Battery 11 on or is only a short distance from it. This gives a direct heat effect on the battery 11 and in the area of the support plate 24 arranged electrical or electronic components.
  • the heating means are always connected to the mains voltage.
  • a temperature controller (not shown) is provided, which the heating means in Depending on an internal temperature of the lamp, if necessary, on the Mains voltage disconnects and switches on again after reaching a lower limit.
  • the heating means are also de-energized. Only that Illuminants are supplied from the battery 11. Illuminants and battery 11 show Transition to emergency operation at a favorable operating temperature. Even with very a low temperature is therefore not to be feared as a failure. An emergency operation over the desired period of 3 hours is possible.
  • the heating means that run with the mains voltage also ensure operation the illuminant at very low outside temperatures.
  • lights of the type described are switched on once and only then after reaching the lamp life to replace the lamp off.
  • For switching on for the first time after inserting new lamps can be provided a time advance of the heating means.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
EP03026406A 2002-12-10 2003-11-19 Appareil d'éclairage antidéflagrant Expired - Lifetime EP1429072B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20219149U 2002-12-10
DE20219149U DE20219149U1 (de) 2002-12-10 2002-12-10 Explosionsgeschützte Leuchte

Publications (3)

Publication Number Publication Date
EP1429072A2 true EP1429072A2 (fr) 2004-06-16
EP1429072A3 EP1429072A3 (fr) 2005-10-12
EP1429072B1 EP1429072B1 (fr) 2008-07-02

Family

ID=7977837

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03026406A Expired - Lifetime EP1429072B1 (fr) 2002-12-10 2003-11-19 Appareil d'éclairage antidéflagrant

Country Status (3)

Country Link
EP (1) EP1429072B1 (fr)
AT (1) ATE399960T1 (fr)
DE (2) DE20219149U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013120791A1 (fr) * 2012-02-15 2013-08-22 Zumtobel Lighting Gmbh Éclairage de secours comprenant un accumulateur

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20040113U1 (it) * 2004-03-18 2004-06-18 S I D E S P A Apparecchio di illuminazione per installazione fissa

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH325651A (de) * 1954-08-14 1957-11-15 Belmag Zuerich Beleuchtungs U Elektrischer Strassenbeleuchtungskörper mit in einem geschlossenen Gehäuse angeordneten Leuchtstoffröhren
DE3525349A1 (de) * 1985-07-16 1987-01-22 Felix Wagner Leuchte zum betrieb bei tiefen temperaturen
FR2787242A1 (fr) * 1998-12-15 2000-06-16 Leseur Maurice Dispositif de rechauffage des batteries d'accumulateurs d'electricite
DE10021510A1 (de) * 2000-05-03 2001-11-08 Mannesmann Vdo Ag Beleuchtungsvorrichtung
GB2369256B (en) * 2000-11-18 2002-11-20 Hubbell Lighting Ltd An electrical apparatus a light fitting and methods of breaking power supply therein

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013120791A1 (fr) * 2012-02-15 2013-08-22 Zumtobel Lighting Gmbh Éclairage de secours comprenant un accumulateur

Also Published As

Publication number Publication date
EP1429072A3 (fr) 2005-10-12
DE50310061D1 (de) 2008-08-14
DE20219149U1 (de) 2003-03-20
ATE399960T1 (de) 2008-07-15
EP1429072B1 (fr) 2008-07-02

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