EP2047720B1 - Procédé et dispositif de contrôle d'au moins un tube fluorescent - Google Patents

Procédé et dispositif de contrôle d'au moins un tube fluorescent Download PDF

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Publication number
EP2047720B1
EP2047720B1 EP07786400.7A EP07786400A EP2047720B1 EP 2047720 B1 EP2047720 B1 EP 2047720B1 EP 07786400 A EP07786400 A EP 07786400A EP 2047720 B1 EP2047720 B1 EP 2047720B1
Authority
EP
European Patent Office
Prior art keywords
temperature
fluorescent lamp
lamp
interrupting
switching
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
EP07786400.7A
Other languages
German (de)
English (en)
Other versions
EP2047720A1 (fr
Inventor
Johannes Frücht
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.)
Cooper Crouse Hinds GmbH
Original Assignee
Cooper Crouse Hinds 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 Cooper Crouse Hinds GmbH filed Critical Cooper Crouse Hinds GmbH
Priority to PL07786400T priority Critical patent/PL2047720T3/pl
Publication of EP2047720A1 publication Critical patent/EP2047720A1/fr
Application granted granted Critical
Publication of EP2047720B1 publication Critical patent/EP2047720B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
    • H05B41/295—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices and specially adapted for lamps with preheating electrodes, e.g. for fluorescent lamps
    • H05B41/298—Arrangements for protecting lamps or circuits against abnormal operating conditions
    • 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
    • F21V25/02—Safety devices structurally associated with lighting devices coming into action when lighting device is disturbed, dismounted, or broken
    • F21V25/04—Safety devices structurally associated with lighting devices coming into action when lighting device is disturbed, dismounted, or broken breaking the electric circuit
    • 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
    • F21V25/10—Safety devices structurally associated with lighting devices coming into action when lighting device is overloaded, e.g. thermal switch
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/52—Cooling arrangements; Heating arrangements; Means for circulating gas or vapour within the discharge space
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/56—One or more circuit elements structurally associated with the lamp
    • 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

Definitions

  • the invention relates to a device and a method for monitoring at least one fluorescent lamp and a corresponding lamp with such a monitoring device.
  • Corresponding fluorescent lamps are used, for example, as explosion-proof linear luminaires in potentially explosive areas. It has been found in operation of luminaires with fluorescent lamps that local overheating of the lamp cap and / or the lamp socket can occur. This is commonly referred to as the "end-of-life" phenomenon where the unacceptable increase in temperature results in a coil being consumed as an electrode and more and more energy needed to maintain the flow of electrodes to operate the fluorescent lamp.
  • An explosion-proof discharge lamp is known from patent specification EP 326,079 (ABB CEAG).
  • Patent US 6,888,324 discloses a Leuchtstafflampe with temperature measurement the lamp filament.
  • the invention is based on the object, with a corresponding fluorescent lamp to avoid such a strong increase in temperature, especially in the hazardous area while maintaining the appropriate explosion protection.
  • Claim 1 relates to a corresponding method, which is characterized by a particular electronic interruption of the power supply to the coil via the ballast, wherein the interruption takes place when a detected temperature in the range of at least one filament of the fluorescent lamp exceeds a predetermined, critical temperature.
  • the critical temperature can correspond to a predetermined limit, which is specified by the explosion protection for surface temperatures of parts of the fluorescent lamp.
  • the corresponding object is achieved in that at least one coil is associated with a temperature measuring device and further an interruption device is present, through which the power supply via the ballast upon reaching the predetermined critical temperature can be interrupted. Preferably, all filaments are monitored.
  • Such a corresponding device may be arranged in a lamp having at least one fluorescent lamp according to claim 21.
  • an impermissible temperature increase of the corresponding luminaire is reliably prevented in this way and the luminaire can be used in particular in potentially explosive areas.
  • the filaments of a fluorescent lamp heat differently. It may be advantageous if the temperature is detected in the region of each coil of the corresponding fluorescent lamp. As soon as one of the corresponding temperatures exceeds the predetermined, critical temperature, an interruption of the energy supply takes place.
  • a safety device is, for example, a temperature fuse which irreversibly interrupts the current flow when the critical temperature is exceeded. Only after replacing both the safety device as well as possibly the fluorescent lamp can be made a re-commissioning.
  • an electronic switching device as an interrupting device.
  • a switching device is for example a temperature switch which switches off a corresponding output of the ballast for supplying energy to the fluorescent lamp when the critical temperature is reached. This shutdown can also be reversible.
  • Such a switching device emits a signal to an interruption device, which is assigned to the ballast.
  • an interruption device may also contain the switching device and additionally a comparison device which, for example, compares the temperature determined by a temperature sensor as a temperature measuring device with the predetermined critical temperature and activates the switching device for interruption only when the critical temperature is reached or exceeded.
  • At least the comparison device is contained in the temperature measuring device and activates the interruption device from there by transmitting corresponding signals.
  • the surface temperature of the respective fluorescent lamps must be monitored for the critical temperature, it may be considered sufficient to determine the temperature from outside the lamp tube of the fluorescent lamp. As a result, no design changes of the actual fluorescent lamp are required. However, it is also possible to integrate a corresponding temperature measuring device in the fluorescent lamp.
  • a temperature measuring device Other possibilities for realizing such a temperature measuring device are a temperature sensor or an infrared sensor (IR sensor).
  • IR sensor infrared sensor
  • the switching device to switch to a closed position to start the ballast. That is, the ballast is restarted after a power failure.
  • the specified, critical temperature is specified by corresponding standards for explosion-proof luminaires.
  • the predetermined, critical temperature is determined taking into account lamp parameters, such as arrangement and / or structure of the coil, distance of the filament from the lamp tube, wall thickness of the lamp tube, etc.
  • lamp parameters such as arrangement and / or structure of the coil, distance of the filament from the lamp tube, wall thickness of the lamp tube, etc.
  • changes in the fluorescent lamp design are taken into account new, undefined states can occur, which can lead to an inadmissible warming.
  • the behavior of a corresponding fluorescent lamp can be highly dependent on ambient conditions, so that the corresponding critical temperature can also be determined in each case for a luminaire at a corresponding installation location.
  • the ballast is an electronic ballast, and its "intelligence" can be used to implement comparison and / or interruption devices in the ballast and by itself.
  • the invention also relates to a luminaire with a corresponding monitoring device of the type described above.
  • Fig. 1 is a block diagram of a monitoring device according to the invention for monitoring at least one fluorescent lamp shown in principle.
  • the monitoring device 1 is part of a lamp 20 with two fluorescent lamps 2 and 3. Each of the fluorescent lamps has at their ends 12, 13 as electrodes 14 each helix 4, 5, and 6, 7 on.
  • each fluorescent lamp 2, 3 are connected to an associated ballast (VG) 8a, b, and in particular electronic ballast (ECG) 8a, b.
  • VG ballast
  • ECG electronic ballast
  • a fluorescent lamp in particular in the region of its electrodes or filament, can be subject to an impermissible temperature increase. This occurs, for example, when the material of the helix is consumed and more and more energy from the electronic ballast for maintaining maintenance of the flow of electrons within the fluorescent lamp is needed.
  • Such an increase in temperature can lead to a local overheating of the turn and thus to an inadmissible increase in temperature of the lamp cap, the lamp holder or even the corresponding lamp tube 11.
  • the overheating then leads to the above error case, which is referred to as the so-called "end-of-life" phenomenon. This phenomenon occurs in exceptional cases at the end of life of the lamp.
  • the corresponding increase in temperature can lead to the ignition of corresponding explosive substances, in particular in the hazardous area.
  • the temperature is measured in the vicinity of at least one and preferably both helices 4, 5 and 6, 7 of each fluorescent lamp 2, 3 in the vicinity of the helix.
  • a corresponding temperature measuring device 15 is used.
  • each of the coils 4, 5, 6, 7 is assigned a different temperature measuring device 15.
  • the same temperature measuring devices all coils 4 to 7 may be assigned.
  • the temperature measuring device 15, which is associated with the coil 4, is a temperature fuse or safety device 9.
  • a temperature fuse in the explosion-proof area (Ex area) is not allowed for direct switching of a load, otherwise it could lead to sparking , Therefore, the current through the fuse is intrinsically safe, and depending on this current, an electronic breaker 19 is caused to turn off the electronic ballast 8.
  • an amplifying device 25 between the securing device 9 and associated interruption device 19 or switching device 10 may be arranged.
  • the temperature measuring device 15 assigned to the coil 5 is an infrared IR sensor 18. Its signals are fed to the interrupt device 19 via an amplification device 25. This can simultaneously contain a comparison device 16 which compares the temperature determined by the IR sensor 18 with a predetermined, critical temperature. If it is determined by the comparison device 16 that the critical temperature is reached or exceeded, the switching device 10 contained in the interruption device 19 can interrupt the energy output by stopping the activation of the switching transistor 23 in the output of the corresponding electronic ballast 8a. The interruption takes place only for the electronic ballast 8a, b, which supplies the corresponding fluorescent lamp 2, 3 with unacceptably elevated temperature with voltage.
  • the coil 7 is assigned as a further embodiment of a temperature measuring device 15, a temperature switch as a switching device. This causes a shutdown of the corresponding ECG or a power interruption via interrupting device 19. There is also the possibility that the temperature switch is connected to a comparator 16 or interrupt device 19, which also initiates an interruption of the power output of the electronic ballast only with appropriate switching of the temperature switch.
  • a temperature sensor 17 is arranged as a temperature measuring device 15. This transmits its measured value to interrupt device 19, the again according to a comparison device 16 and a switching device 10, and optionally interrupts the power supply of a lamp.
  • the corresponding temperature fuse 9 an irreversible interruption occurs. This can only be reversed if the temperature fuse 9 and possibly also the fluorescent lamp has been replaced.
  • the switching device 10 stops the ECG. Only after a power failure can the ECG be restarted.
  • the inventive temperature detection and corresponding shutdown of the electronic ballast results in an advantage according to the invention that can be addressed when detecting the temperature on the specific needs in potentially explosive atmospheres.
  • undefined states can occur, leading to an inadmissible heating.
  • Such states can be considered according to the invention, for example, the arrangement or the structure of the coil, distance of the coil to the lamp tube, wall thickness of the lamp tube or the like relate.
  • the corresponding determination of the critical temperature continues to take into account the corresponding ambient conditions of the respective fluorescent lamp, if these have an influence on the ambient temperature or the heating of the fluorescent lamp, whereby the position of use of the lamp is to be considered.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Claims (13)

  1. Procédé de surveillance d'au moins une lampe fluorescente en fonctionnement dans la zone à atmosphère explosive, comportant les étapes suivantes de :
    i) détection de la température dans la zone d'au moins une hélice (4, 5, 6, 7) de la lampe fluorescente (2, 3) ;
    ii) comparaison de la température déterminée à une température supérieure critique prédéfinie, et
    iii) interruption de l'alimentation en énergie à l'hélice (4, 5, 6, 7) par le biais d'un ballast (8a, b) lorsque la température supérieure critique est atteinte ou dépassée.
  2. Procédé selon la revendication 1, caractérisé par une détection de la température à l'étape i) dans la zone de chaque hélice (4, 5, 6, 7) de la lampe fluorescente (2, 3).
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que la coupure à l'étape iii) s'effectue au moyen d'un dispositif de coupe-circuit.
  4. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la coupure à l'étape iii) s'effectue par un dispositif d'interruption et, en particulier, par un dispositif de commutation (10).
  5. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la comparaison dans l'étape ii) s'effectue au dispositif de coupe-circuit ou d'interruption (9, 19).
  6. Procédé selon l'une quelconque des revendications précédentes, caractérisé par la détection de la température à l'étape i) à partir de l'extérieur d'un tube de lampe (11) de la lampe fluorescente (2, 3).
  7. Procédé selon l'une quelconque des revendications précédentes, caractérisé par la définition préalable de la température critique en tenant compte des paramètres de la lampe, tels que la disposition et/ou la structure de l'hélice (4, 5, G, 7), ia distance entre l'hélice et le tube de lampe, l'épaisseur de paroi du tube de lampe et similaires.
  8. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que, après l'étape iii), il se produit un redémarrage du ballast (8a, b), en particulier à l'expiration d'une période de temps prédéfinie.
  9. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la coupure à l'étape iii) s'effectue au moyen de l'interruption de l'alimentation en tension du ballast (8a, b).
  10. Dispositif (1) de surveillance d'au moins une lampe fluorescente (2, 3) en fonctionnement dans la zone à atmosphère explosive, laquelle lampe fluorescente (2, 3) présente un tube de lampe (11) doté d'électrodes (14) disposées à ses extrémités (12, 13) sous forme d'hélices (4, 5, 6, 7) et un ballast (8a, b), le dispositif (1) de surveillance présentant au moins un dispositif de mesure de la température (15) affecté à une hélice (4, 5, 6, 7) et un dispositif d'interruption (19), en particulier, électronique par lesquels le dispositif d'interruption interrompt l'alimentation en énergie au moyen du ballast (8a, b) lorsqu'une température supérieure critique prédéfinie est atteinte ou dépassée.
  11. Dispositif selon la revendication 10, caractérisé en ce que le dispositif (1) présente un dispositif de comparaison (16) pour la comparaison de la température mesurée au moyen du dispositif de mesure de la température (15) à la température critique.
  12. Dispositif selon la revendication 11, caractérisé en ce que le dispositif de comparaison (16) est contenu dans le dispositif de mesure de la température (15).
  13. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de mesure de la température (15) est un protecteur thermique (9), un capteur de température (17) et un capteur IR (18) ou similaire.
EP07786400.7A 2006-08-03 2007-07-27 Procédé et dispositif de contrôle d'au moins un tube fluorescent Not-in-force EP2047720B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07786400T PL2047720T3 (pl) 2006-08-03 2007-07-27 Urządzenie i sposób monitorowania co najmniej jednej lampy fluorescencyjnej

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006036292A DE102006036292A1 (de) 2006-08-03 2006-08-03 Vorrichtung und Verfahren zur Überwachung wenigstens einer Leuchtstofflampe
PCT/EP2007/006689 WO2008014941A1 (fr) 2006-08-03 2007-07-27 Procédé et dispositif de contrôle d'au moins un tube fluorescent

Publications (2)

Publication Number Publication Date
EP2047720A1 EP2047720A1 (fr) 2009-04-15
EP2047720B1 true EP2047720B1 (fr) 2013-09-04

Family

ID=38658402

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07786400.7A Not-in-force EP2047720B1 (fr) 2006-08-03 2007-07-27 Procédé et dispositif de contrôle d'au moins un tube fluorescent

Country Status (9)

Country Link
US (1) US8018179B2 (fr)
EP (1) EP2047720B1 (fr)
CN (1) CN101502183B (fr)
CA (1) CA2658505C (fr)
DE (1) DE102006036292A1 (fr)
ES (1) ES2437589T3 (fr)
NO (1) NO340663B1 (fr)
PL (1) PL2047720T3 (fr)
WO (1) WO2008014941A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006036293A1 (de) * 2006-08-03 2008-02-14 Cooper Crouse-Hinds Gmbh Überwachungsvorrichtung
DE102010029226B4 (de) * 2010-05-21 2016-09-15 Osram Gmbh Sicherung für eine LED-FL-Retrofitlampe, LED-FL-Retrofitlampe und Verfahren zum Herstellen einer LED-FL-Retrofitlampe
US9520742B2 (en) 2014-07-03 2016-12-13 Hubbell Incorporated Monitoring system and method
CN112512156A (zh) * 2020-12-12 2021-03-16 南京德文医学科技有限公司 一种荧光卡壳加装荧光激发灯定性检测装置

Family Cites Families (13)

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Publication number Priority date Publication date Assignee Title
DE1838020U (de) * 1959-06-10 1961-09-21 Dominitwerke Explosions- und schlagwettergeschuetzte sicherheitsleuchte mit vorgeheizter niederspannungs- leuchtstofflampe.
US3161746A (en) * 1963-01-21 1964-12-15 Gen Electric Fluorescent lamp starter including a glow switch contiguous and thermally connectred o a thermal switch
DE3710275A1 (de) * 1987-03-28 1988-10-06 Ceag Licht & Strom Anordnung zum starten und betrieb einer leuchtstofflampe
AU2868289A (en) * 1988-01-28 1989-08-03 Abb Ceag Licht-Und Stromversorgungstechnik Gmbh Explosion proof discharge lamp
US5623184A (en) * 1995-03-03 1997-04-22 Gulton Industries, Inc. Lamp circuit with filament current fault monitoring means
US5619105A (en) * 1995-08-17 1997-04-08 Valmont Industries, Inc. Arc detection and cut-out circuit
EP0873572A1 (fr) * 1996-10-11 1998-10-28 Catalina Lighting, Inc. Lampadaire halogene avec protection contre l'incendie
US6888324B1 (en) * 2002-05-16 2005-05-03 Balboa Instruments, Inc. Ozone generator having a mercury lamp with a filament temperature detective circuit
CN100356820C (zh) * 2002-12-25 2007-12-19 飞宏电子（上海）有限公司 荧光灯寿命终止保护电路
CN1652656A (zh) * 2004-02-06 2005-08-10 黄甜仔 荧光灯管灯丝保护电路
JP2009037736A (ja) * 2005-11-22 2009-02-19 Sharp Corp 放電管、表示装置用照明装置、液晶表示装置、及び液晶テレビジョン
US7368883B2 (en) * 2006-04-12 2008-05-06 Power Elab Ltd. Apparatus for end-of-life detection of fluorescent lamps
US8754589B2 (en) * 2008-04-14 2014-06-17 Digtial Lumens Incorporated Power management unit with temperature protection

Also Published As

Publication number Publication date
CA2658505A1 (fr) 2008-02-07
NO340663B1 (no) 2017-05-29
NO20090429L (no) 2009-03-02
CN101502183A (zh) 2009-08-05
US20090309518A1 (en) 2009-12-17
DE102006036292A1 (de) 2008-02-14
CA2658505C (fr) 2017-11-07
EP2047720A1 (fr) 2009-04-15
PL2047720T3 (pl) 2013-12-31
ES2437589T3 (es) 2014-01-13
WO2008014941A1 (fr) 2008-02-07
CN101502183B (zh) 2013-07-10
WO2008014941B1 (fr) 2008-03-27
US8018179B2 (en) 2011-09-13

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