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EP0466749A1 - Lampe fluorescente. - Google Patents

Lampe fluorescente.

Info

Publication number
EP0466749A1
EP0466749A1 EP19900905491 EP90905491A EP0466749A1 EP 0466749 A1 EP0466749 A1 EP 0466749A1 EP 19900905491 EP19900905491 EP 19900905491 EP 90905491 A EP90905491 A EP 90905491A EP 0466749 A1 EP0466749 A1 EP 0466749A1
Authority
EP
European Patent Office
Prior art keywords
fluorescent lamp
discharge vessel
rectifier
lamp according
heating wire
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
EP19900905491
Other languages
German (de)
English (en)
Other versions
EP0466749B1 (fr
Inventor
Claus Reinig
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.)
Reinig Werner
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT90905491T priority Critical patent/ATE90476T1/de
Publication of EP0466749A1 publication Critical patent/EP0466749A1/fr
Application granted granted Critical
Publication of EP0466749B1 publication Critical patent/EP0466749B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H05B41/16—Circuit arrangements in which the lamp is fed by DC or by low-frequency AC, e.g. by 50 cycles/sec AC, or with network frequencies

Definitions

  • the invention relates to a fluorescent lamp, in particular a mercury discharge lamp, with a transparent discharge vessel, preferably made of glass, with which an ohmic heating wire is in thermal contact.
  • fluorescent lamps generally consist of an elongated discharge vessel made of glass, at the ends of which glow electrodes are melted.
  • the vessel is usually evacuated and filled with krypton, argon and mercury.
  • Known fluorescent lamps are usually operated on mains voltage.
  • a choke coil and a glow starter are necessary to ignite the gas discharge.
  • the choke and the starter cause additional consumption of energy or a reduction in efficiency, as well as an inductive or reactive current load on the AC network.
  • further compensation and radio interference suppression measures are necessary.
  • Fluorescent lamps with an attached power supply unit are also known, which rectify the AC voltage from the network for DC operation.
  • the direct current must be modulated and / or chopped at high frequency in order to prevent polarization at the glow electrode ends of the discharge vessel; otherwise mercury present in the discharge vessel would precipitate at one end of the discharge vessel, which would then become unusable within a few hours. From this follows the problem on which the invention is based, while avoiding the disadvantages mentioned, creating an energy-saving and, at the same time, reliable fluorescent lamp in operation with only a small additional outlay on circuitry, it being possible in particular to use commercially available standard fluorescent tubes.
  • a fluorescent lamp with the features mentioned at the outset is proposed according to the invention to use a heat-insensitive thread, for example a thread, which extends along the discharge vessel.
  • B. made of glass fiber, wire or other strand, which is surrounded by the heating wire as the inner guide core preferably helically.
  • the discharge vessel is in constant thermal contact with a heating device which is structurally integrated with the fluorescent lamp and which can be used to optimize the operating temperature for the discharge gas in the vessel.
  • Mercury as a discharge gas for example, can thus be heated to a temperature at which it is constantly in the vapor or gaseous state (exceeding its boiling point temperature), and consequently is distributed throughout the discharge vessel as a result of the heating and is not distributed on one of the glow electrode ends of the discharge vessel, although the glow electrodes are subjected to direct current operation and the discharge vessel is therefore polarized.
  • Another advantage achieved by the invention is that the contents of the discharge vessel can be kept at an operating temperature that is optimal in terms of efficiency; it can be drive voltage and power consumption achieve a high luminous efficiency. Practical considerations and tests have shown that the energy costs are only approx. 33% compared to an AC-operated fluorescent tube in the dose / starter mode.
  • the heating device is advantageously implemented by an ohmic heating resistor which contacts the discharge vessel in a thermal connection.
  • This idea can be further developed particularly advantageously by inserting the heating resistor into the circuit of the glow electrodes of the discharge vessel in a current-limiting manner, in particular by connecting it in series with the glow electrodes.
  • the ballast resistance that is absolutely necessary for each fluorescent lamp, which in the case of DC operation, among other things, is serves to limit the current is structurally integrated with the heating device and can therefore perform two functions, namely on the one hand serve as ballast / current limitation / series resistor and on the other hand heat the discharge vessel and its contents.
  • the discharge vessel is under atmospheric pressure under overpressure or underpressure (low, high and very high pressure lamps).
  • the heating device in particular the heating resistor, is designed as a heating wire resting on the outer wall of the discharge vessel.
  • the heating wire is shaped or arranged according to an expedient realization of the invention in such a way that it extends over the entire length of the tubular discharge vessel extends along helix lines or helical lines.
  • the heating wire running on the outer surface of the discharge vessel can have an optically disruptive effect.
  • a heat-insensitive thread, wire or other strand is stretched from one end to the other end of the discharge vessel, around which the heating wire is wound in helical or helical form.
  • the strand forms, as it were, a core or a core wire for the heating wire to guide it, and thus stabilizes the mounting of the heating wire on the outer wall, the discharge vessel.
  • the heating wire is to be arranged in the interior of the discharge vessel, it is particularly expedient for insulation against the gas being discharged and at the same time for mechanical stabilization and to increase the service life, to surround the wire with a rigid and / or insulating tube.
  • the arrangement of the heating device according to the invention makes it possible to operate the fluorescent lamp with direct current, despite the polarization that occurs.
  • an ignition network is provided in a development of the invention, which is connected upstream of one of the glow electrodes and consists of one or more stabilizing diodes and coupling and / or smoothing capacitors; these are arranged and dimensioned such that the ignition network can initiate the discharge process and stabilize the continuous discharge operation, being coupled on the input side to the rectifier and / or the AC voltage source.
  • a realization of the ignition network within the scope of the invention consists in that it comprises two stabilizing diodes connected in series and a capacitor connected in parallel with these diodes, this series parallel connection being connected on the input side to the rectifier output and on the output side using one of the glow electrodes. is bound.
  • the stabilizing diodes serve to keep the electrical voltage of the downstream glow electrode constant with respect to the opposite, other glow electrode, while the smoothing capacitor reduces the residual ripple of the rectification of the AC network.
  • a particularly advantageous embodiment of the invention consists in that the (stabilizing) diode closest to the glow electrode is connected with its input terminal to a capacitor dimensioned as a differentiating member, which on its opposite side is directly connected to the change ⁇ power network is connected.
  • this capacitor couples the AC voltage applied to the glow electrode via the stabilizing diode, a surge of current being brought into the discharge vessel due to its differentiating properties. This is sufficient to start the gas discharge in the vessel.
  • the rectifier it is expedient to arrange four diodes in a bridge circuit, as is known per se, in which case an alternating current load resistor is connected to the bridge rectifier on its input side and / or one or more charging capacitors are connected in parallel on its output side.
  • the charging capacitors serve for integrally smoothing the output voltage of the rectifier; they also have the extraordinary advantage that they initially act as short-circuiting current sinks during the switch-on phase until they are charged; in the meantime, the effect that ignites the gas discharge can Development of the differentiating coupling capacitor discussed above unfold undisturbed or unimpaired.
  • ballast which optionally includes an AC voltage rectifier and / or ignition network, with or in the lamp connection base, which serves to establish electrical contact , integrated, in particular in one piece with this.
  • the connector base can be as
  • Ballast consists in providing its structural arrangement in the annular space delimited by the inner discharge vessel and by the outer envelope surrounding it.
  • FIG. 2 shows a further embodiment of the fluorescent tube arrangement according to the invention in a partially sectioned longitudinal view
  • 3 shows a broken away external view of the end of the fluorescent tube according to the invention
  • Fig. 4 shows a modified embodiment in Fig. 3 corresponding view.
  • the heating device 2 is designed as a helical heating wire and rests on the piston outer wall 5 ⁇ arranges.
  • One end of the heating wire is connected to the negative pole 6 which is led directly out of the rectifier circuit 3, and the other end is connected to the connecting pin 8b of one of the two single-pin bases 9 via a clamping shoe 7.
  • the connection pins 8 on each of the ends of the fluorescent tube or the discharge vessel 1 merge into the inside of the (not shown) glow electrodes.
  • the heating wire 2 runs helically or helically around a strand 10, which thus forms an inner guide core for the heating wire and is attached to the end of the fluorescent tube 1 facing away from the clamping shoe 7 on the outer wall by means of an adhesive connection 11 (shown schematically).
  • an adhesive connection 11 shown schematically.
  • the end of the strand 10 is fastened within the clamping shoe 7, which in turn is fastened by clamping around the connecting pin 8. This achieves a mechanical tension of the strand 10 between the ends of the fluorescent tube or the discharge vessel 1, and the strand 10 can thus serve as an inner guide core for mechanical stabilization of the position of the heating wire helix 2.
  • That connecting pin 8a which is located at the end of the fluorescent tube 1 facing away from the clamping shoe 7, is connected via an electrical connecting line 12 to a positive pole 13 which is led out of the rectifier circuit 3 indirectly via the ignition circuit 4.
  • the rectifier circuit 3 is fed on the input side from a 220 V alternating current network, a load resistor R L for generating a defined input voltage being connected in parallel to the two output terminals of the alternating current network (for example phase and center conductor).
  • the rectifier 3 comprises four diodes D ⁇ , D2, D3 and D4, which are arranged in a bridge circuit in a manner known per se.
  • a charging capacitor and C L 2 are connected in parallel with the plus and minus outputs of this bridge rectifier circuit 3 and one of the output terminals of the 220 V AC voltage source.
  • the ignition network 4 is directly connected to the output of the rectifier 3 with positive polarity. It has the two stabilizing diodes D5 and Dg arranged in series, to which a smoothing capacitor C G is connected in parallel in common. Furthermore, the ignition and stabilization circuit 4 also has a coupling capacitor C ⁇ , one of which is connected directly to an output terminal of the 220 V AC source and the other is directly connected to an input of one of the stabilizing diodes D5, D6, preferably - as is connected to the stabilizing diode D6 arranged closest to the connecting pin 8a of the fluorescent tube 1.
  • Suitable dimensioning values for the load resistance R L are 100-680 k ⁇ , for the two charging capacitors C j _ ⁇ and C L 2 2.2 ⁇ F, for the coupling capacitor C ⁇ 0.082 ⁇ F and for the smoothing capacitor C G 0.1 ⁇ F .
  • a resistance of 600 ⁇ / m has proven to be useful for the heating wire.
  • the arrangement shown in FIG. 1 is made of fluorescent tube 1 with a heating wire 2 and of which the wrapped strand 10 is surrounded by an outer casing.
  • this has the shape of a (plastic) tube which is closed at one end by a plug 15 which is pressed into the press fit.
  • a base housing 16 At the other end of the outer casing 14 is a base housing 16 with a standard external thread 17 and a contact element

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)

Abstract

Une lampe fluorescente, notamment une lampe à décharge de mercure, comporte un tube de décharge opaque (1) avec un fil chauffant de résistance ohmique (2), et un fil thermo-sensible (10), par exemple une fibre de verre, un fil métallique, ou autre câblé qui s'étend le long du tube de décharge. Le fil chauffant est enroulé, de préférence en spirale, autour du fil thermo-sensible, lequel constitue un noyau de guidage intérieur.
EP90905491A 1989-04-04 1990-04-03 Lampe fluorescente Expired - Lifetime EP0466749B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90905491T ATE90476T1 (de) 1989-04-04 1990-04-03 Leuchtstofflampe.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8904130U DE8904130U1 (de) 1989-04-04 1989-04-04 Leuchtstofflampe
DE8904130U 1989-04-04

Publications (2)

Publication Number Publication Date
EP0466749A1 true EP0466749A1 (fr) 1992-01-22
EP0466749B1 EP0466749B1 (fr) 1993-06-09

Family

ID=6837853

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90905491A Expired - Lifetime EP0466749B1 (fr) 1989-04-04 1990-04-03 Lampe fluorescente

Country Status (5)

Country Link
EP (1) EP0466749B1 (fr)
AU (1) AU5413790A (fr)
CA (1) CA2051447A1 (fr)
DE (3) DE8904130U1 (fr)
WO (1) WO1990012417A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2728607A1 (fr) * 2012-11-06 2014-05-07 General Electric Company Ensemble de lampe fluorescente avec démarrage amélioré

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8904130U1 (de) * 1989-04-04 1989-05-24 Reinig, Claus, 8531 Lonnerstadt Leuchtstofflampe
DE4001750A1 (de) * 1989-10-09 1991-04-11 Albert Henning Einrichtung fuer den betrieb von leuchtstofflampen
JPH1064685A (ja) * 1996-08-14 1998-03-06 Denso Corp ヒータ付冷陰極蛍光灯
US5834899A (en) * 1996-10-16 1998-11-10 Tapeswitch Corporation Of America Fluorescent apparatus and method employing low-frequency excitation into a conductive-resistive inductive medium
DE10021510A1 (de) * 2000-05-03 2001-11-08 Mannesmann Vdo Ag Beleuchtungsvorrichtung
DE102008002727B4 (de) 2008-06-27 2020-12-17 Brita Gmbh Vorrichtung zur Behandlung von Wasser, insbesondere Filtervorrichtung, und Kartusche
DE102008040335B4 (de) 2008-07-10 2013-05-08 Brita Gmbh Vorrichtung zur Entkeimung von Wasser und Verwendung derselben
DE102008044294A1 (de) * 2008-12-02 2010-06-10 Brita Gmbh Quecksilberdampflampe, Verfahren zum Entkeimen von Flüssigkeiten und Flüssigkeitsentkeimungsvorrichtung
TWD148182S1 (zh) 2011-04-01 2012-07-11 布利塔有限公司 紫外線輻射裝置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3755708A (en) * 1972-06-02 1973-08-28 Gte Sylvania Inc Sodium vapor lamps having improved starting means
US3757159A (en) * 1972-07-17 1973-09-04 Gte Sylvania Inc Sodium vapor lamp having improved starting means
US4654774A (en) * 1984-09-21 1987-03-31 General Electric Company Low ripple, high power factor a-c to d-c power supply
DE8904130U1 (de) * 1989-04-04 1989-05-24 Reinig, Claus, 8531 Lonnerstadt Leuchtstofflampe

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9012417A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2728607A1 (fr) * 2012-11-06 2014-05-07 General Electric Company Ensemble de lampe fluorescente avec démarrage amélioré

Also Published As

Publication number Publication date
AU5413790A (en) 1990-11-05
EP0466749B1 (fr) 1993-06-09
WO1990012417A1 (fr) 1990-10-18
DE59001722D1 (de) 1993-07-15
CA2051447A1 (fr) 1990-10-05
DE8904130U1 (de) 1989-05-24
DE9007438U1 (de) 1991-09-12

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