EP1841293A1 - Système et procédé pour la prolongation de la durée de fonctionnement des lampes fluorescentes - Google Patents

Système et procédé pour la prolongation de la durée de fonctionnement des lampes fluorescentes Download PDF

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Publication number
EP1841293A1
EP1841293A1 EP06111817A EP06111817A EP1841293A1 EP 1841293 A1 EP1841293 A1 EP 1841293A1 EP 06111817 A EP06111817 A EP 06111817A EP 06111817 A EP06111817 A EP 06111817A EP 1841293 A1 EP1841293 A1 EP 1841293A1
Authority
EP
European Patent Office
Prior art keywords
end cap
terminals
fluorescent tube
adapter element
socket
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Withdrawn
Application number
EP06111817A
Other languages
German (de)
English (en)
Inventor
Karl-Heinz Stutzer
Jens Kretschmann
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.)
SAVE-T5-TRONIC GmbH
Original Assignee
SAVE-T5-TRONIC 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 SAVE-T5-TRONIC GmbH filed Critical SAVE-T5-TRONIC GmbH
Priority to EP06111817A priority Critical patent/EP1841293A1/fr
Publication of EP1841293A1 publication Critical patent/EP1841293A1/fr
Withdrawn legal-status Critical Current

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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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
    • H01R33/05—Two-pole devices
    • H01R33/06—Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other
    • H01R33/08—Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other for supporting tubular fluorescent lamp
    • H01R33/0827—Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other for supporting tubular fluorescent lamp characterised by the contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
    • H01R33/945—Holders with built-in electrical component
    • 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
    • H05B41/282—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

Definitions

  • the present invention relates to a system, method and adapter element for operating a fluorescent tube having first and second end caps with two terminals, the two terminals of the first end cap being connected to a high frequency output of an electronic ballast powered by an AC power source are.
  • a fluorescent tube is usually a gas discharge lamp comprising a tubular discharge vessel made of glass, at the first end cap, a first filament and at the second end cap, a second filament is melted, and wherein the first and second end cap each have two terminals.
  • the discharge vessel is usually evacuated and may be filled with argon and a small amount of mercury.
  • the electrical operation of a fluorescent tube by means of an electronic ballast is for example from the EP 1 095 541 B1 known.
  • the ECG is a quadrupole, whose output terminals for applying a high-frequency voltage to the two terminals of the first input cap are connected, and whose input terminals to the two terminals of the second input cap and a choke form a series circuit connected in parallel to an AC power source is.
  • this circuit arrangement has the disadvantage that during operation of the fluorescent tube, the second incandescent filament flows through the operating current of the electronic ballast provided by the alternating current source and is thus subject to increased wear, which can lead to the second filament being burned through.
  • burning one of the two incandescent filaments of the fluorescent tube leads to the fluorescent tube becoming unusable in this circuit arrangement, since the operating current of the electronic ballast must flow through the second incandescent filament and, moreover, the first incandescent filament must be flown through during the ignition process of the fluorescent tube for preheating by a heating current provided by the electronic ballast.
  • the invention is based on the object to extend the life of a fluorescent tube when operating with an electronic ballast in a simple manner.
  • a system having a first and a second end cap with two each A fluorescent tube having terminals, the two terminals of the first end cap being connected to a high-frequency output of an electronic ballast supplied with an AC from an AC power source, and wherein the two terminals of the second end cap together are at a common electric potential.
  • the fluorescent tube includes a first filament connected to the two terminals of the first end cap and a second filament connected to the two terminals of the second end cap.
  • the electronic ballast may include, for example, a first and second terminal input for supplying the alternating current, wherein the first terminal of the input may be connected to a first terminal of the AC power source, and the second terminal of the input may be connected to a second terminal of the AC power source, so that the AC source and the input of the ECG are in a first circuit.
  • the two terminals of the second end cap lying together at a common electrical potential may be connected to this first circuit, but they may also be connected to a separate terminal of the electronic ballast.
  • the common electrical potential of the two terminals of the second end cap can be achieved, for example, by a galvanic short circuit in a socket receiving the fluorescent tube, or, for example, by a galvanic short circuit in an adapter piece which extends between the second end cap and a socket can be forced.
  • the electronic ballast applies to the two terminals of the first end cap and thus to the first incandescent filament of the fluorescent tube a high-frequency alternating voltage whose frequency in the range between 10 kHz and 100 kHz, in particular between 20-60 kHz preferably between 30-33 kHz , Furthermore, the ECG can also assume the function of a dimmer, for example.
  • the system according to the invention has the advantage that no operating current of the electronic ballast can flow through the second incandescent filament, since the two terminals of the second end cap together are at a common potential, and thus the service life of the second filament is prolonged.
  • the system according to the invention has the advantage that the operation of the fluorescent tube is possible even if the second filament is burned out, since in this case the ECG is still supplied with the provided by the AC power AC as operating current.
  • a fluorescent tube in which the first filament is burned while the second filament is still intact continue to be operated in the system according to the invention by the fluorescent tube is re-installed in the system, so that now the intact second filament from the high-frequency Output of the electronic ballast is fed and the two outputs of the blown first filament are together at a common potential.
  • the two outputs of the burned filament together are at a potential
  • the two residues located at the first and second terminals of the end cap of the burned filament can continue to act as a hot cathode so that the arc tube can continue to emit a homogeneous light.
  • An embodiment of the invention provides that the system is provided with a fluorescent tube receiving and mechanically positioning the first and second socket.
  • the fluorescent tube can simply be taken out of the first and second version for further operation and reused for further operation, provided that the second incandescent filament is still intact.
  • the fluorescent tube can be received directly from the first and second socket, so that, for example, the first socket mechanically and electrically receives the two terminals of the first end cap and the second socket mechanically and electrically receives the two terminals of the second end cap, but it can next to the Fluorescent tube still at least one other element, such as an adapter element, between the first and the second version are.
  • first and second sockets may be fixedly attached to or in a housing.
  • An embodiment of the invention provides that the first socket mechanically and electrically receives the two terminals of the first end cap and connects to the high-frequency output of the electronic ballast.
  • the first version may have two contact receptacles, which is connected to the high-frequency output of the electronic ballast, so that after insertion of the first end cap in the first version, the two terminals of the first end cap are electrically connected to the high-frequency output.
  • the electronic ballast may for example be attached to or in a housing having the first and the second version.
  • An embodiment of the invention provides that the electronic ballast is located in a first adapter element which can be placed between the first socket and the two terminals of the first end cap.
  • this first adapter element comprising the electronic ballast
  • a low-frequency operated fluorescent tube which exactly fits the length between the first and the second socket can be replaced by the first adapter element and another shorter-length fluorescent tube, so that this other fluorescent tube is now replaced by the second fluorescent tube produced by the ECG located in the first adapter element high-frequency alternating voltage is fed.
  • this solution according to the invention has the advantage that the length of the electrical connection between the output of the electronic ballast and the terminals of the first end cap is minimized, since the adapter element comprising the electronic ballast is located directly on the first end cap, and thus of the high-frequency AC voltage of the ECG caused high-frequency radiation is minimized.
  • An embodiment of the invention provides that the first adapter element has two electrically and mechanically receivable terminals in the first version for feeding the alternating current into the electronic ballast, and that the first adapter element has a socket for mechanical and electrical recording of the two terminals of the first end cap ,
  • the adapter element can be plugged directly into the first socket, and the fluorescent tube can be plugged with the first end cap into the socket of the adapter element and with the second end cap in the second socket.
  • An embodiment of the invention provides that the length of the first adapter element a difference in length between the distance of the first and the second version and the length of the fluorescent tube compensates.
  • a further embodiment of the invention provides that the second socket receives the two terminals of the second end cap mechanically and electrically.
  • the two terminals having the second end cap is thus mechanically inserted into the second version.
  • the second version can have two contact receptacles together lying together at an electrical potential.
  • An embodiment of the invention provides that the common electrical potential of the two terminals of the second end cap is enforced by an electrical short circuit arranged in the second socket.
  • This short circuit in the second version can be retrofitted, for example, in an existing system, so that the inventive feature of the common electrical potential of the two terminals of the second end cap can be easily retrofitted to existing systems. As soon as the fluorescent tube is inserted into the second socket, the two terminals of the second end cap of the fluorescent tube are thus set together to a common electrical potential.
  • An embodiment of the invention provides that the system comprises a placeable between the two terminals of the second end cap and the second socket second adapter element, wherein the two terminals of second end cap are short-circuited by the second adapter element.
  • An embodiment of the invention provides that the second adapter element has a socket for the mechanical and electrical reception of the two terminals of the second end cap, and the second adapter element has at least one terminal electrically and mechanically receivable in the second socket.
  • the second adapter element is suitable, for example, for retrofitting existing systems for operating fluorescent tubes, which already comprise a first and a second socket for receiving a fluorescent tube operated with a high-frequency alternating voltage, wherein neither the first nor the second socket short-circuited to the respective end cap caused by an inserted fluorescent tube.
  • the second adapter element can be easily inserted between one of the end caps of the fluorescent tube and the second socket, whereby the inventive common potential of the two terminals of the second end cap of the fluorescent tube is generated.
  • the second adapter element may be formed such that despite the interposition of the second adapter element between the fluorescent tube and the second version, the same fluorescent tube can be used as in the previously existing system.
  • the second adapter element may also have a length such that a shorter fluorescent tube is used after the conversion.
  • the second adapter element may also be used together with the first adapter element comprising the electronic ballast, such that the fluorescent tube is connected between the first and the second the second adapter element is located, and the first adapter element is inserted into the first socket, and the second adapter element is inserted into the second socket.
  • the sockets of the first and second adapter element may differ from the first and the second version, so that with the aid of the first and second adapter element fluorescent tubes can be used, whose connections of the first and second end cap do not match the first and second version ,
  • An embodiment of the invention provides that the length of the second adapter element compensates for a difference in length between the distance of the first and the second socket and the total length of the fluorescent tube and the optional existing first adapter element.
  • a low-frequency operated fluorescent tube system for example, with a T-8 tube can be easily converted to the inventive system by the previous low-frequency operated fluorescent tube is replaced by a new fluorescent tube, for example, a T-5 tube with shortened length, and the length of first adapter element and the second adapter element is dimensioned so that the unit comprising the first adapter element, the new fluorescent tube and the second adapter element fits exactly between the first and the second socket.
  • a starter operating in the low-frequency operated system can be short-circuited for the operation of the system according to the invention. Also, the starter can be replaced with a fuse.
  • This solution according to the invention has the advantage that, for example, a hitherto in the low-frequency system used the fluorescent tube by means of two sockets receiving housing does not need to be converted consuming, but can be converted by the use of the first and second adapter element and a shortened fluorescent tube to a system with a high frequency operated fluorescent tube.
  • a high-frequency operated fluorescent tube system in which there is already an electronic ballast for supplying a high-frequency alternating voltage to the terminals of the first end cap on the first version, be converted by the use of the second adapter piece on the system according to the invention very simple.
  • An embodiment of the invention provides that an ignition of the fluorescent tube is performed by the electronic ballast.
  • the ECG can first preheat the first filament, and then apply the high-frequency voltage to the preheated first filament, so that the fluorescent lamp can finally be ignited.
  • An embodiment of the invention provides that the electronic ballast has an input for receiving the AC power provided by the AC power source, so that the AC power source and the input of the electronic ballast are in a first circuit.
  • the input of the electronic ballast may include, for example, a first and a second terminal.
  • the first connection of the ECGs may be connected to a first output of the AC power source, and the second terminal of the ECG may be connected to a second output of the AC power source.
  • a choke may be located between the AC source and the ECG. This choke can act as a high-frequency filter and suppress electromagnetic and high-frequency interference, and the choke can optimize the performance and crest factor.
  • An embodiment of the invention provides that the two terminals of the second end cap are connected to the first circuit.
  • the first input of the ECG may be connected to the first output of the AC power source
  • the second input of the ECG may be connected to the two shorted terminals of the second end cap
  • the two shorted terminals of the second end cap may be connected to the second output of the AC power source
  • the operating current of the electronic ballast does not flow through the second filament in this solution according to the invention, since the two terminals of the second end cap are together at a common potential.
  • This solution may be suitable, for example, for retrofitting conventional fluorescent tube systems.
  • the first and the second input of the electronic ballast and the first and the second output of the alternating current source can be interchanged as desired.
  • further electrical or electronic components may be located between the respective inputs and outputs, such as a throttle.
  • the first input of the ECG may also be connected to the first output of the AC source, and the second input of the ECG may be connected to the second output of the AC source, and the two terminals of the second end cap may be connected either to the first output or to the second Output of the AC power source to be connected.
  • An embodiment of the invention provides that the electronic ballast has a further connected to the two terminals of the second end cap connection.
  • the high-frequency circuit comprising the output of the electronic ballast and the two filament are decoupled from the low-frequency operating circuit of the electronic ballast.
  • An embodiment of the invention provides that there is a throttle between the AC power source and the electronic ballast.
  • This throttle may for example be part of a previously operated without electronic ballast low-frequency fluorescent tube system, which has been retrofitted by a ballast, such as by the first adapter element according to the invention.
  • the object according to the invention is further achieved by a method for operating a fluorescent tube having a first and a second end cap with two connections, wherein the two terminals of the first end cap are provided with an electronic circuit powered by an alternating current from an alternating current source Ballast generated high frequency alternating voltage is applied, and the two terminals of the second end cap are set to an electrical potential, solved.
  • An embodiment of the invention provides that the electronic ballast for igniting the fluorescent tube preheats a filament connected to the two terminals of the first end cap before the high-frequency AC voltage is applied to the two terminals of the first end cap.
  • an adapter element for operating a first and a second end cap with two terminals having fluorescent tube, wherein the two terminals of the first end cap are connected to a high-frequency output of an AC supplied from an AC power electronic ballast, and Fluorescent tube is positioned between a first and a second socket, and wherein the adapter element has a socket for mechanically and electrically receiving the two terminals of the second end cap and at least one in the second socket electrically and mechanically receivable terminal, and wherein the adapter element, the two terminals of shorts the second end cap.
  • This adapter element according to the invention is thus suitable for retrofitting conventional fluorescent tube systems, wherein this adapter element can also be used in combination with the above-described first EVG comprehensive adapter element.
  • the adapter element according to the invention thus corresponds to the second adapter element described above, wherein all the previously mentioned possible uses, embodiments and advantages of the second adapter element apply equally to this adapter element according to the invention.
  • FIG. 1 shows a conventional system for low-frequency operation of a fluorescent tube 3.
  • This fluorescent tube 3 may be, for example, a T-8 or T-12 fluorescent tube.
  • This fluorescent tube 3 comprises a first end cap 1 having two terminals 1a, 1b, and a second end cap having two terminals 2a, 2b, to which two terminals 1a, 1b of the first end cap 1 is connected a first filament 1c and to the two terminals 2a, 2b of the second end cap 2, a second filament 2c is connected.
  • the connections 1a, 1b The first end cap 1 are formed as contact pins and can be inserted into the contact receptacles 6a, 6b of a first socket 6, and the terminals 2a, 2b of the second end cap 2 are also formed as contact pins and inserted into the contact receptacles 12a, 12b of a second version 12th
  • the AC power source 11 having the two terminals 11a and 11b is connected in parallel to a choke 10, the two terminals 1a and 1b of the first end cap 1, a starter 7 and the two terminals 2a and 2b of the second end cap 2 comprising series connection
  • FIG. 2 shows a first embodiment of the system according to the invention for high-frequency and life-prolonging operation of a fluorescent tube 5, preferably a T-5 fluorescent tube, which is also preferably used in the following exemplary embodiments, this first embodiment being particularly suitable for retrofitting an existing fluorescent tube
  • a fluorescent tube 5 preferably a T-5 fluorescent tube
  • this first embodiment being particularly suitable for retrofitting an existing fluorescent tube
  • Low-frequency operated fluorescent tube system as shown for example in Figure 1, is suitable.
  • like reference numerals refer to like elements.
  • a fluorescent tube 5 of short length is used as the previously used fluorescent tube 3, with a first adapter element 9 comprising an electronic ballast 8 between the first end cap 1 'and the first socket 6, and a second one Adapter element 13 between the second end cap 2 'and the second version 12 is located.
  • the first adapter element 9 and the second adapter element 13 hereby equalize the difference in length between the fluorescent tube 5 used in FIG. 2 and the fluorescent tube 3 used in FIG.
  • the first adapter element 9 comprises two contact pins 9a and 9b, which fit into the contact receptacles 6a and 6b of the first socket 6, so that the first adapter element 9 can be inserted into the first socket 6 for mechanical and electrical connection. Furthermore, the first adapter element 9 has two contact receptacles 9c and 9d into which a fluorescent tube 5 with its terminals 1a 'and 1b' located on the first end cap 1 ', which are formed as contact pins, can be inserted for mechanical and electrical connection.
  • the second adapter element 13 comprises two contact pins 13c and 13d, which fit into the contact receptacles 12a and 12a of the second socket 12, so that the second adapter element 13 can be inserted into the second socket 12 for mechanical and electrical connection. Furthermore, the second adapter element 13 has two Contact receptacles 13a and 13b, in which a fluorescent tube 5 with its on the second end cap 2 'located terminals 2c' and 2b ', which are formed as contact pins, insert for mechanical and electrical connection.
  • the two terminals 2a 'and 2b' of the second end cap 2 'of the fluorescent tube 5 are placed together at a common potential. This is done in this first embodiment in that the contact receptacles 13a and 13b of the second adapter element are short-circuited by an electrical connection 14.
  • the input 8a, 8b of the electronic ballast 8 located in the first adapter element 9 is connected via the contact pins 9a and 9b to the contact receptacles 6a and 6b of the first socket, so that the electronic ballast 8 is called by the alternating current source 11 with an alternating current, hereinafter called the operating current. is fed.
  • the operating current flows through the choke 7, past the short-circuited starter 7, through the second socket 12 and the short circuit 14 in the second adapter element 13. Thus, the operating current does not flow via the second filament 2c '.
  • the two short-circuited terminals 2a 'and 2b' are connected to the circuit comprising the AC power source 11 and the input 8a, 8b of the ECG.
  • the electronic ballast heats the incandescent filament 1c 'and applies a high-frequency alternating voltage to the two terminals 1a', 1b 'of the first end cap 1' via the high-frequency output 8c, 8d.
  • the first filament 1c ' acts as a hot cathode and emits electrons which move in the direction of the second filament 2c' acting as the anode.
  • the second incandescent filament 2c' is also heated, and the second filament 2c 'also begins to emit electrons in the direction of the first incandescent filament 1c' due to the alternating voltage.
  • a heating of the second filament by a separate stream, such as the operating current is not required for the operation of the fluorescent tube 5 according to the invention.
  • the life of the second filament 2c ' is increased.
  • the heating of the first filament is not needed after ignition.
  • a further advantage of the arrangement according to the invention is that the second filament 2c 'is interrupted, i. e.g. can be blown, since the operating current does not flow through the second filament 2c ', but via the short circuit 14 in the second adapter element 13.
  • a fluorescent tube with a burned incandescent filament is operated in the system shown in Figure 2, in which the end cap is plugged with the burnt-on filament to the second adapter element 13, so that the intact other filament is fed by the located in the first adapter element 9 ECG 8.
  • this other filament must not be burned because it must be preheated to ignite the fluorescent tube.
  • the fluorescent tube can simply be inserted inverted between the first and the second adapter element and continue to operate, making the fluorescent tube 5 can be used longer and extends the life of the fluorescent tube 5.
  • the short circuit 14a of the first terminal 2a 'with the second terminal 2b' of the second end cap 2 does not necessarily have to be in the second adapter element, but can also take place, for example, in the second version 12 or elsewhere.
  • the contact receptacles 9c, 9d of the first adapter element 9 may correspond to the contact receptacles 9b, 9a of the first version 6, as well as the contact receptacles 13a, 13b of the second adapter element 13 may correspond to the contact receptacles 12a, 12b of the second version 12, so that a fluorescent tube 5 with the same end cap type as in the fluorescent tube 3 used in FIG.
  • the contact receptacles 9c, 9d and 13a, 13b of the first and second adapter elements 9, 12 may also differ from the contact receptacles 6a, 6b and 12a, 12b of the first and second socket 6, 12, so that the fluorescent tube 5 has a different connection the end caps 1 ', 2' compared to the fluorescent tube used in the low-frequency system 3 may have.
  • first end cap type such as a T8 type fluorescent tube
  • second Endkappentyp such as a fluorescent tube of the type T5
  • the shorter fluorescent tube 5 now high-frequency and at the same time low-wear and thus life extended without changes to the first version. 6 and the second version 12.
  • the current flowing through the operating current of the electronic ballast 8 choke 10 acts as a high-frequency filter, the throttle 10 can also be removed. Furthermore, the starter 7 is bridged, since the electronic ballast 8 carries out the starting process of the fluorescent tube 5.
  • FIG. 3 A second embodiment of the system according to the invention is shown in FIG.
  • This second embodiment differs from the first embodiment in that the two terminals 2a 'and 2b' of the second end cap 2 'of the fluorescent tube 5 are connected to the terminals of the second socket 12 by short-circuit 14b together to a common electrical potential, which in the used in Figure 2 system shown second adapter element 13 is not needed.
  • the short circuit 14b shown in FIG. 3 can also take place in the socket 12.
  • This second embodiment is particularly suitable for upgrading a low-frequency system for driving a fluorescent tube, as shown for example in FIG. 1, by replacing the fluorescent tube 3 shown in FIG. 1 with a shorter fluorescent tube 5.
  • the electronic ballast 8 is located between the first socket 6 and the AC power source 11.
  • the electronic ballast 8 may be housed in a housing (FIG. 1) comprising the first socket 6, the second socket 12, the throttle 10 and the AC power source 11 (FIG. not shown in FIG. 4).
  • the two terminals 2a 'and 2b' of the second end cap 2 ' are put together by the second adapter element 13 to a common potential.
  • this third embodiment can provide a retrofit solution of a system for high-frequency operation of a fluorescent tube already containing an ECG 8, in which by exchanging the previously used fluorescent tube with a new shorter fluorescent tube 5 and using the second adapter element 13 according to the invention, the system according to the invention for life-prolonging operation of a fluorescent tube is realized.
  • the second adapter element causing the short circuit 14 may also be made so thin (not shown in FIG. 4) that the previously used fluorescent tube can still be used, although the second adapter element is between the second socket 12 and the second end cap 2 'of the fluorescent tube 5 is plugged.
  • this second adapter element may be a thin metal disk having two holes, so that this metal disk can slide onto the two contact pins 2a 'and 2b' of the second end cap 2 'and thereby short-circuit the terminals 2a' and 2b ', the contact pins 2a 'and 2b' through the two holes of Metal disk can penetrate into the contact receptacles 12 a and 12 b of the second version 12.
  • the throttle shown in Fig. 4 may be omitted, further, the AC power source 11 may also be located between the terminal 8b and the second end cap.
  • the second adapter element 13 may be omitted, for example, when the two outputs of the second socket 12 are short-circuited (as shown in FIG. 3), or when the two pins 12a and 12b in the second socket 12 are short-circuited.
  • FIG. 5 shows a fourth embodiment of the system according to the invention.
  • no adapter element is used, ie the fluorescent tube is directly in the first version 6 and the second version 15.
  • the second version 15 closes the two contact receptacles 15a and 15b short, so that the two terminals 2a 'and 2b' of the second end cap 2 'of the fluorescent tube 5 together are at a common potential.
  • the second version 15 shown in FIG. 5 has only one connection 15d, which is connected to the one input 11a of the alternating current source 11, but this connection 15d may alternatively be connected to the second input 11b, or alternatively to one of the inputs 8a , 8b of the TOE.
  • the two shorted terminals 2a 'and 2b' with the circuit comprising the AC source 11 and the input 8a, 8b of the ECG.
  • a choke may be located between the AC power source 11 and the input 8a, 8b of the ECG 8.
  • the electronic ballast 8 ' comprises a further terminal 8e', which is connected via the second socket 15 to the short-circuited terminals 2a ', 2b' of the second end cap 2 '.
  • the high-frequency current flowing through the fluorescent tube 5 is thus no longer conducted via the input of the electronic ballast, which is also used for the low-frequency operating current, but decoupled from the input 8a ', 8b' of the electronic ballast into the electronics of the electronic ballast.
  • Fig. 5 and 6 only one terminal 15d having second socket 15 can also be replaced respectively by the two terminals shown in Fig. 3 second socket 12, when either both terminals are short-circuited, such as in Fig. 3 with the Short circuit 14b shown.
  • the short circuit can also be done in the version itself.
EP06111817A 2006-03-28 2006-03-28 Système et procédé pour la prolongation de la durée de fonctionnement des lampes fluorescentes Withdrawn EP1841293A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06111817A EP1841293A1 (fr) 2006-03-28 2006-03-28 Système et procédé pour la prolongation de la durée de fonctionnement des lampes fluorescentes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06111817A EP1841293A1 (fr) 2006-03-28 2006-03-28 Système et procédé pour la prolongation de la durée de fonctionnement des lampes fluorescentes

Publications (1)

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EP1841293A1 true EP1841293A1 (fr) 2007-10-03

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EP06111817A Withdrawn EP1841293A1 (fr) 2006-03-28 2006-03-28 Système et procédé pour la prolongation de la durée de fonctionnement des lampes fluorescentes

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EP (1) EP1841293A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19900889A1 (de) * 1999-01-12 2000-07-13 Hiralal Shah Suresh Bausatz zum Umrüsten von Leuchten mit geraden, beidseitig gesockelten Leuchstofflampen, von induktivem auf elektronischen Betrieb
EP1095541B1 (fr) 1998-10-01 2002-07-17 Future New Developments Limited Configuration de circuit destinee au fonctionnement a faible consommation d'energie d'un tube fluorescent
US6459215B1 (en) * 2000-08-11 2002-10-01 General Electric Company Integral lamp
DE10125510A1 (de) * 2001-05-23 2002-12-05 Innolux Gmbh Leuchtstofflampenschaltung
DE10204432A1 (de) * 2002-02-04 2003-09-11 Tridonicatco Gmbh & Co Kg Elektronisches Vorschaltgerät mit Wendelheizung

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1095541B1 (fr) 1998-10-01 2002-07-17 Future New Developments Limited Configuration de circuit destinee au fonctionnement a faible consommation d'energie d'un tube fluorescent
US6518715B1 (en) * 1998-10-01 2003-02-11 Future New Developments Limited Circuit arrangement for the energy-saving operation of a fluorescent tube
DE19900889A1 (de) * 1999-01-12 2000-07-13 Hiralal Shah Suresh Bausatz zum Umrüsten von Leuchten mit geraden, beidseitig gesockelten Leuchstofflampen, von induktivem auf elektronischen Betrieb
US6459215B1 (en) * 2000-08-11 2002-10-01 General Electric Company Integral lamp
DE10125510A1 (de) * 2001-05-23 2002-12-05 Innolux Gmbh Leuchtstofflampenschaltung
DE10204432A1 (de) * 2002-02-04 2003-09-11 Tridonicatco Gmbh & Co Kg Elektronisches Vorschaltgerät mit Wendelheizung

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