WO2012022384A1 - Lampe à induction à lumière mixte - Google Patents

Lampe à induction à lumière mixte Download PDF

Info

Publication number
WO2012022384A1
WO2012022384A1 PCT/EP2010/065435 EP2010065435W WO2012022384A1 WO 2012022384 A1 WO2012022384 A1 WO 2012022384A1 EP 2010065435 W EP2010065435 W EP 2010065435W WO 2012022384 A1 WO2012022384 A1 WO 2012022384A1
Authority
WO
WIPO (PCT)
Prior art keywords
self
ballast circuit
lamp
lamp socket
transformer
Prior art date
Application number
PCT/EP2010/065435
Other languages
English (en)
Inventor
Ronald Rudolph RiemVis
Original Assignee
Dutondata Bv
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 Dutondata Bv filed Critical Dutondata Bv
Publication of WO2012022384A1 publication Critical patent/WO2012022384A1/fr

Links

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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J65/00—Lamps without any electrode inside the vessel; Lamps with at least one main electrode outside the vessel
    • H01J65/04—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels
    • H01J65/042—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels by an external electromagnetic field
    • H01J65/048—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels by an external electromagnetic field the field being produced by using an excitation coil

Definitions

  • the invention relates to the field of light sources.
  • the invention relates to the field of self-ballasted electrodeless lamps, such as induction lamps.
  • Electrodeless lamps such as induction lamps, are known by virtue of their long lifetime and high efficiency, which is comparable with conventional gas discharge lamps such as TL tubes and the energy saving lamps using the fluorescence principle.
  • the bulbs are estimated to have a lifetime of 100.000 hours.
  • the electronics however, will shorten this lifetime to over 60.000 hours.
  • electrodeless lamps do not rely on an electron current in the lamp generated by a voltage between two electrodes. Instead, an induction coil is used, in which a high frequency voltage is generated, causing current to flow in the gas which is enclosed in the glass enve- lope around the coil.
  • the gas may e.g. be mercury vapor
  • the light generation process entails the emission of electromagnetic
  • electrodeless lamps have been seen over the years to be used more often in residential places, like households as a substitute for incandescent lamps.
  • US 2005/0206322 and US 2005/0012458 disclose self- ballasted electrodeless lamps.
  • Self-ballasted lamps as used in the present application, include ballasts and sockets so that these lamps can directly replace incandescent lamps in terms of structure.
  • the prior art self-ballasted lamps include a luminous bulb wherein an induction coil is placed, a ballast containing portion for accommodating the ballast circuit and a socket.
  • the structure of the socket resembles that of an incandescent lamp in order to allow simple replacement by an electrodeless lamp.
  • a disadvantage of the prior art self-ballasted electrodeless lamp amounts to the restriction in the luminous solid angle resulting from the ballast containing portion of the lamp.
  • a self- ballasted electrodeless lamp comprising a bulb accommodating an induction coil, a ballast circuit for applying a high-frequency signal to the induction coil and a lamp socket.
  • the lamp socket is configured to be connected to a power supply, e.g. of a lamp armature, for supplying power to the ballast circuit.
  • the ballast circuit is accommodated within the space provide by the lamp socket.
  • the luminous solid angle of the lamp is enhanced by omitting the need for a ballast circuitry containing portion lo- cated between the bulb accommodating the induction coil and the lamp socket. Instead, the transparent or translucent bulb of the lamp can be directly mounted onto the lamp socket, since the ballast circuit is substantially entirely accommodated within the lamp socket.
  • the self-ballasted electrodeless lamp has a ballast circuit comprising high- frequency driving electronics including a transformer.
  • the transformer fits entirely into the lamp socket.
  • the transformer component of the high-frequency driving electronics has been miniaturized in order to enable accommodating the transformer entirely within the lamp socket.
  • the high-frequency driving electronics is configured, in an embodiment of the invention, for providing the high- frequency signal with a frequency of higher than 1 Mhz, e.g.
  • the transformer comprises a transformer core containing a ceramic material
  • the ferrite is a soft ferrite containing e.g. an iron oxide and manganese oxide. Smaller portions of zinc oxide and cupper oxide may also be
  • the transformer may be a toroid.
  • the dimensions of the transformer are such that the outer diameter is smaller than 10 mm (e.g. 5, 7 or 8 mm) and the inner diameter is smaller than 5 mm (e.g. 4.5, 3.5 or 2.5 mm) .
  • the height of the transformer is smaller than 7 mm (e.g. 3, 4, 5 or 6 mm) .
  • the transformer of the electrodeless lamp comprises a first secondary winding and a second secondary winding.
  • the first secondary winding is connected with a gate of a first n-channel MOSFET of the ballast circuit and the second secondary winding is connected with a gate of second n-channel MOSFET of the ballast circuit. Terminals of the first and second n-channel MOSFET are connected at a common connection point of the ballast circuit.
  • This embodiment enables the ballast circuitry to obtain a smooth sinusoidal signal for the gates of the field effect transistors thereby efficiently steering the transistors to produce a square wave signal at the common connection point.
  • the amount of heat generated within the lamp socket has been found to result in a temperature decrease of only 10 °C for a 22W lamp.
  • the transformer com- prises a primary winding connected to a triggering means of the ballast circuitry for conducting current after exceeding a predetermined voltage threshold.
  • triggering means e.g. a DIAC
  • the triggering means are contained within the lamp socket.
  • the ballast circuitry is provided as an integrated circuit, e.g. using a field-programmable gate array (FPGA).
  • FPGA field-programmable gate array
  • FIGS. 1A and IB are schematic illustrations of a self- ballasted electrodeless lamp according to the prior art and according to an embodiment of the invention, respectively;
  • FIGS. 2-4 are illustrations of self-ballasted electrodeless lamps according to embodiments of the invention.
  • FIG. 5 depicts a ballast circuit for a self-ballasted electrodeless lamp as shown in FIGS. 2-4.
  • FIG. 1A is a schematic cross-section illustration of prior art electrodeless lamp 100 comprising a bulb 102, a bal- last containing portion 104 and a lamp socket 106.
  • the ballast containing portion 104 houses a ballast circuit 108.
  • the dashed lines indicate that the luminous solid angle for light emitted from the bulb 102 is restricted by the ballast containing portion 104.
  • the lamp socket 106 is mounted into a power providing portion A of e.g. a lighting armature from which power is received for operating the lamp 100.
  • the lamp socket may e.g.
  • FIG. IB is a schematic illustration of an embodiment of an electrodeless lamp 200 according to an embodiment of the invention.
  • the self-ballasted electrodeless lamp 200 comprises a bulb 202 accommodating an induction coil (not shown in FIG. IB) and a lamp socket 206.
  • the ballast con- taining portion coincides with or is integrated within the lamp socket 206, such that a ballast circuit 208 is housed within the lamp socket 206.
  • the ballast circuit 208 is configured for applying a high-frequency signal to the induction coil within the bulb 202.
  • the ballast circuit 208 may be provided as an integrated circuit, e.g. a field-programmable gate array (FPGA).
  • FPGA field-programmable gate array
  • the lamp socket 206 is configured to be connected to a power supply for supplying power to the ballast circuit 208 and the ballast circuit 208 is accommodated within the lamp socket 206.
  • the power extracted from the mains can be between 4 and 200 Watts.
  • the lamp socket 206 may e.g. be mounted into a power providing portion A of e.g. an lighting armature from which power is received for operating the lamp 100.
  • the lamp socket may e.g. comprise a E27, E14, G9, GU10 or GX53 socket.
  • the luminous solid angle has considerably increased and may e.g. range from 250 - 350 degrees (in the cross-section shown in FIG. IB) , thereby also improving the amount of light obtained from the lamp.
  • FIGS. 2-4 show induction lamps 200, comprising a base 210 on which a coil 212 is wound.
  • a glass bulb 202 encloses all the parts, including an amalgam containing portion 214.
  • the lamp socket 206 is used to mount the lamp in a lamp holder A (as shown in FIG. IB) to provide electricity to the ballast circuit accommodated within the lamp socket 206.
  • the part 216 can be used to cool the lamp 200 only for higher power outputs.
  • the glass bulb 202 shown in FIGS. 2 and 3 can take any and the designs of FIGS. 2 and 3 are only examples.
  • FIG. 5 is an embodiment of a ballast circuit 208 as shown in FIG. IB.
  • the ballast circuit 208 is provided within the lamp socket 206 for operating the lamp, particularly for driving the coil 212 in a manner known as such.
  • the ballast circuit 208 receives power Vcc via e.g. a lamp holder A.
  • the ballast circuit 208 contains a transformer having a primary winding with terminals 1 and 2 and two secon- dary windings with terminals 3, 4 and 5, 6 respectively.
  • the dimensions of the transformer are such that the outer diameter is smaller than 10 mm (e.g. 5, 7 or 8 mm) and the inner diameter is smaller than 5 mm (e.g. 4.5, 3.5 or 2.5 mm) .
  • the height of the transformer is smaller than 7 mm (e.g. 3, 4, 5 or 6 mm) .
  • the transformer has a core C comprising a soft ferrite material.
  • the core material C comprises 49.5% Fe 2 0 3 , 42,5% MnO, 3% Zn) and 5% CuO.
  • the Q-factor of the core material is 50 at a freguency of 2.65 MHz (measured with a HP4342A Q-meter) .
  • the core material has been sintered at a temperature of 1100 °C.
  • the first secondary winding is connected with a gate of a first n-channel MOSFET and the second secondary winding is connected with a gate of second n-channel MOSFET of the ballast circuit.
  • Terminals 3 and 5 of the first and second secondary windings are connected with gates of the first and second n- channel MOSFETs.
  • Terminals of the first and second n-channel MOSFET are connected at a common connection point P of the ballast circuit.
  • the primary winding is connected to a DIAC that conducts current only after Vcc exceeds a predetermined voltage threshold in order to establish an induction field in the primary winding of the transformer.
  • the predetermined voltage may e.g. be 70 Volts.
  • the DIAC is also contained within the lamp socket 206.
  • FIG. 5 does not contain parts for meeting EMC requirements and the power supply other than indicating Vcc. Such parts are also contained within the lamp socket

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

La présente invention a trait à une lampe à induction à lumière mixte qui comprend une ampoule logeant une bobine d'induction, un circuit de protection permettant d'appliquer un signal haute fréquence à la bobine d'induction et une douille. La douille est configurée de manière à être connectée à un bloc d'alimentation, par exemple d'un induit de lampe, en vue de fournir de l'énergie au circuit de protection. Le circuit de protection est logé à l'intérieur de la douille.
PCT/EP2010/065435 2010-08-18 2010-10-14 Lampe à induction à lumière mixte WO2012022384A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP10173139A EP2421335A1 (fr) 2010-08-18 2010-08-18 Lampe à économie d'énergie à nouveau design
EP10173139.6 2010-08-18

Publications (1)

Publication Number Publication Date
WO2012022384A1 true WO2012022384A1 (fr) 2012-02-23

Family

ID=43384652

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/065435 WO2012022384A1 (fr) 2010-08-18 2010-10-14 Lampe à induction à lumière mixte

Country Status (2)

Country Link
EP (1) EP2421335A1 (fr)
WO (1) WO2012022384A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107889333A (zh) * 2012-11-26 2018-04-06 明灯有限公司 感应rf荧光灯
US10418233B2 (en) 2017-12-28 2019-09-17 Lucidity Lights, Inc. Burst-mode for low power operation of RF fluorescent lamps
US10529551B2 (en) 2012-11-26 2020-01-07 Lucidity Lights, Inc. Fast start fluorescent light bulb

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10141179B2 (en) 2012-11-26 2018-11-27 Lucidity Lights, Inc. Fast start RF induction lamp with metallic structure
US20140375203A1 (en) 2012-11-26 2014-12-25 Lucidity Lights, Inc. Induction rf fluorescent lamp with helix mount
US9245734B2 (en) 2012-11-26 2016-01-26 Lucidity Lights, Inc. Fast start induction RF fluorescent lamp with burst-mode dimming
US9129791B2 (en) 2012-11-26 2015-09-08 Lucidity Lights, Inc. RF coupler stabilization in an induction RF fluorescent light bulb
US8901842B2 (en) 2013-04-25 2014-12-02 Lucidity Lights, Inc. RF induction lamp with ferrite isolation system
US9209008B2 (en) 2012-11-26 2015-12-08 Lucidity Lights, Inc. Fast start induction RF fluorescent light bulb
US9524861B2 (en) 2012-11-26 2016-12-20 Lucidity Lights, Inc. Fast start RF induction lamp
US9305765B2 (en) 2012-11-26 2016-04-05 Lucidity Lights, Inc. High frequency induction lighting
US10128101B2 (en) 2012-11-26 2018-11-13 Lucidity Lights, Inc. Dimmable induction RF fluorescent lamp with reduced electromagnetic interference
US9161422B2 (en) 2012-11-26 2015-10-13 Lucidity Lights, Inc. Electronic ballast having improved power factor and total harmonic distortion
US9460907B2 (en) 2012-11-26 2016-10-04 Lucidity Lights, Inc. Induction RF fluorescent lamp with load control for external dimming device
US8975829B2 (en) 2013-04-25 2015-03-10 Lucidity Lights, Inc. RF induction lamp with isolation system for air-core power coupler
US9129792B2 (en) 2012-11-26 2015-09-08 Lucidity Lights, Inc. Fast start induction RF fluorescent lamp with reduced electromagnetic interference
US8941304B2 (en) 2012-11-26 2015-01-27 Lucidity Lights, Inc. Fast start dimmable induction RF fluorescent light bulb
US8872426B2 (en) 2012-11-26 2014-10-28 Lucidity Lights, Inc. Arrangements and methods for triac dimming of gas discharge lamps powered by electronic ballasts
USD745982S1 (en) 2013-07-19 2015-12-22 Lucidity Lights, Inc. Inductive lamp
USD745981S1 (en) 2013-07-19 2015-12-22 Lucidity Lights, Inc. Inductive lamp
USD746490S1 (en) 2013-07-19 2015-12-29 Lucidity Lights, Inc. Inductive lamp
USD747507S1 (en) 2013-08-02 2016-01-12 Lucidity Lights, Inc. Inductive lamp
USD747009S1 (en) 2013-08-02 2016-01-05 Lucidity Lights, Inc. Inductive lamp
USD854198S1 (en) 2017-12-28 2019-07-16 Lucidity Lights, Inc. Inductive lamp

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3521120A (en) * 1968-03-20 1970-07-21 Gen Electric High frequency electrodeless fluorescent lamp assembly
US4245178A (en) * 1979-02-21 1981-01-13 Westinghouse Electric Corp. High-frequency electrodeless discharge device energized by compact RF oscillator operating in class E mode
US4568859A (en) * 1982-12-29 1986-02-04 U.S. Philips Corporation Discharge lamp with interference shielding
EP0593312A2 (fr) * 1992-10-16 1994-04-20 Flowil International Lighting (Holding) B.V. Source de lumière fluorescente
US5952792A (en) * 1996-08-28 1999-09-14 General Electric Company Compact electrodeless fluorescent A-line lamp
US20050012458A1 (en) 2002-07-02 2005-01-20 Takeshi Arakawa Bulb-shaped electrodeless fluorescent lamp and electrodeless discharge lamp lighting device
US20050206322A1 (en) 2002-06-03 2005-09-22 Matsushita Electric Industrial Co., Ltd Electrodeless low-pressure discharge lamp operating device and self-ballasted electrodeless fluorescent lamp
CN101635247A (zh) * 2008-11-21 2010-01-27 丁春辉 一种一体化高频无极灯

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3521120A (en) * 1968-03-20 1970-07-21 Gen Electric High frequency electrodeless fluorescent lamp assembly
US4245178A (en) * 1979-02-21 1981-01-13 Westinghouse Electric Corp. High-frequency electrodeless discharge device energized by compact RF oscillator operating in class E mode
US4568859A (en) * 1982-12-29 1986-02-04 U.S. Philips Corporation Discharge lamp with interference shielding
EP0593312A2 (fr) * 1992-10-16 1994-04-20 Flowil International Lighting (Holding) B.V. Source de lumière fluorescente
US5952792A (en) * 1996-08-28 1999-09-14 General Electric Company Compact electrodeless fluorescent A-line lamp
US20050206322A1 (en) 2002-06-03 2005-09-22 Matsushita Electric Industrial Co., Ltd Electrodeless low-pressure discharge lamp operating device and self-ballasted electrodeless fluorescent lamp
US20050012458A1 (en) 2002-07-02 2005-01-20 Takeshi Arakawa Bulb-shaped electrodeless fluorescent lamp and electrodeless discharge lamp lighting device
CN101635247A (zh) * 2008-11-21 2010-01-27 丁春辉 一种一体化高频无极灯

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
GENURA R80 REFLECTOR DATASHEET: "Compact Fluorescent Lamps Integrated 23W", June 2010, GE LIGHTING, USA, XP002615688 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107889333A (zh) * 2012-11-26 2018-04-06 明灯有限公司 感应rf荧光灯
US10529551B2 (en) 2012-11-26 2020-01-07 Lucidity Lights, Inc. Fast start fluorescent light bulb
US10418233B2 (en) 2017-12-28 2019-09-17 Lucidity Lights, Inc. Burst-mode for low power operation of RF fluorescent lamps

Also Published As

Publication number Publication date
EP2421335A1 (fr) 2012-02-22

Similar Documents

Publication Publication Date Title
WO2012022384A1 (fr) Lampe à induction à lumière mixte
US3987334A (en) Integrally ballasted electrodeless fluorescent lamp
RU2292130C2 (ru) Ламповый узел с индуктивным источником энергии и способ производства лампового узла
US4017764A (en) Electrodeless fluorescent lamp having a radio frequency gas discharge excited by a closed loop magnetic core
US7049763B2 (en) Electrodeless low-pressure discharge lamp operating device and self-ballasted electrodeless fluorescent lamp
US9129791B2 (en) RF coupler stabilization in an induction RF fluorescent light bulb
US9524861B2 (en) Fast start RF induction lamp
US3987335A (en) Electrodeless fluorescent lamp bulb RF power energized through magnetic core located partially within gas discharge space
EP1150338A1 (fr) Dispositif d'entrainement d'une lampe a decharge sans electrode
US7084562B2 (en) Electrodeless discharge lamp
US20140145605A1 (en) High frequency induction rf fluorescent lamp with reduced electromagnetic interference
CN1149630C (zh) 无电极放电灯
US6437516B2 (en) Unsaturating transformer, an electronic ballast using the transformer, and a self-ballasted
TWI270096B (en) Electronic ballast
KR200426136Y1 (ko) 자기 유도를 이용한 무전극 형광 램프
JP4088222B2 (ja) 無電極放電ランプ
JP2007273137A (ja) 無電極放電灯装置、およびそれを用いた照明器具
KR200426135Y1 (ko) 고주파를 이용한 무전극 램프
RU107571U1 (ru) Гибридная интегрированная компактная лампа
US20150022082A1 (en) Dielectric barrier discharge lamps and methods
RU2653057C2 (ru) Устройство для функционирования искусственного источника света (два варианта)
JP2005158793A (ja) 高電圧パルス発生回路、高電圧パルストランス、高圧放電ランプ点灯装置および照明装置
KR100868315B1 (ko) 페라이트코어를 갖는 무전극 형광램프
JP4075158B2 (ja) 高周波インバータおよび放電ランプ点灯装置
JP4232598B2 (ja) 無電極放電灯点灯装置及び照明装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10765629

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A SENT ON 6.6.13)

122 Ep: pct application non-entry in european phase

Ref document number: 10765629

Country of ref document: EP

Kind code of ref document: A1