WO2012172926A1 - セラミックメタルハライドランプ照明装置 - Google Patents

セラミックメタルハライドランプ照明装置 Download PDF

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Publication number
WO2012172926A1
WO2012172926A1 PCT/JP2012/062869 JP2012062869W WO2012172926A1 WO 2012172926 A1 WO2012172926 A1 WO 2012172926A1 JP 2012062869 W JP2012062869 W JP 2012062869W WO 2012172926 A1 WO2012172926 A1 WO 2012172926A1
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WO
WIPO (PCT)
Prior art keywords
lamp
metal halide
lighting device
ceramic metal
tubes
Prior art date
Application number
PCT/JP2012/062869
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
大河原亮
前原昭美
松本泰久
西村純平
Original Assignee
岩崎電気株式会社
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 岩崎電気株式会社 filed Critical 岩崎電気株式会社
Priority to CN2012800119325A priority Critical patent/CN103403838A/zh
Publication of WO2012172926A1 publication Critical patent/WO2012172926A1/ja

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/04—Electrodes; Screens; Shields
    • H01J61/10—Shields, screens, or guides for influencing the discharge
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/30—Vessels; Containers
    • H01J61/34—Double-wall vessels or containers
    • 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
    • H01J61/92—Lamps with more than one main discharge path

Definitions

  • the present invention relates to a ceramic metal halide lamp lighting device. More specifically, the present invention relates to reduction of restart time or realization of instantaneous restart of a ceramic metal halide lamp illumination device having a plurality of arc tubes and only one arc tube that is always lit.
  • High-intensity discharge lamps such as high-pressure mercury lamps, high-pressure sodium lamps, metal halide lamps, and ceramic metal halide lamps emit light using discharge between electrodes. Since the luminous flux is larger than incandescent bulbs, it has various features such as being suitable for lighting in a large-scale space and having high energy efficiency. Therefore, it is generally widely used as lighting for roads, shops, factories, etc., location lighting for televisions and movies, and headlights for automobiles and railway vehicles.
  • metal halide lamps that employ metal halides as luminescent materials have advantages such as excellent color rendering and high luminous efficiency that are close to white light (natural light) compared to high-pressure mercury lamps that emit pale light. Yes.
  • quartz arc tubes have been used as arc tubes for metal halide lamps.
  • translucent ceramic arc tubes have been used as arc tubes.
  • the translucent ceramic arc tube can have a much longer life than a quartz arc tube.
  • a single translucent ceramic arc tube can secure a lifetime of 24,000 hours.
  • the material ceramics does not react with the metal halide sealed in the arc tube, there are advantages that various metal halides can be used and that the heat resistance is good.
  • Ceramic metal halide lamps that use arc tubes made of translucent ceramics are particularly called “ceramic metal halide lamps”.
  • the present inventors are aware of the following patent documents as prior art documents relating to shortening the restart time of a ceramic metal halide lamp.
  • JP-A-49-17077 Publication date: February 15, 1974
  • "Multi-arc tube lamp” Applicant: General Electric Company
  • Japanese Laid-Open Patent Publication No. 10-12388 Publication Date: January 16, 1998) “High Pressure Sodium Lamp, High Pressure Sodium Lamp Lighting Circuit, and Lighting Device” (Applicant: Toshiba Lighting Corporation)
  • JP 2006-100089 Publication date: April 13, 2006
  • “Ceramic Metal Halide Lamp” Applicant: Hitachi Lighting Co., Ltd.
  • Patent Documents 1 to 3 are provided with a translucent heat shielding member, which is a feature of the present invention, which increases the pulse voltage and further suppresses heat transfer from the arc tube during light emission to the adjacent arc tube.
  • a translucent heat shielding member which is a feature of the present invention, which increases the pulse voltage and further suppresses heat transfer from the arc tube during light emission to the adjacent arc tube.
  • the present invention achieves reduction in restart time and instantaneous restart in a ceramic metal halide lamp lighting device in which only one arc tube that is easily lit among a plurality of arc tubes is lit. Objective.
  • the ceramic metal halide lamp illuminating device is an illuminating device including a ceramic metal halide lamp and a drive circuit.
  • the ceramic metal halide lamp has a plurality of arc tubes in one outer sphere and is always easily lit. This is a lamp in which only one arc tube is turned on, and in order to suppress heat transfer from one arc tube that is lit to the other arc tube that is extinguished, light is transmitted between the plural arc tubes.
  • a heat shielding member is disposed, and the driving circuit applies a pulse voltage of 2.5 to 4.5 kV to the lamp during restart.
  • the drive circuit may apply a pulse voltage of 3.0 to 4.5 kV to the lamp at the time of restart.
  • the translucent heat shielding member may be made of quartz glass.
  • the translucent heat shielding member may be a plate-like body.
  • the translucent heat shielding member may be a cylindrical member surrounding each arc tube.
  • the translucent heat shielding member is a member surrounding each arc tube, and is formed by combining two test tube-shaped glass tubes having slightly different diameters. May be cylindrical and both ends may be rounded.
  • the lamp may be a lamp with an output of 190 W.
  • the restart time can be shortened and instantaneous restart can be realized.
  • FIG. 1 is a diagram for explaining a configuration of a ceramic metal halide lamp in which two current arc tubes are enclosed.
  • FIG. 2 is a graph illustrating pulse voltage-restart time characteristics when the pulse voltage is sequentially increased in the lamp shown in FIG.
  • FIG. 3 is a graph for explaining the pulse voltage-restart time characteristics in the lamp shown in FIG. 1 when the temperature rise of the other lamp is suppressed by using the translucent heat shielding member and the pulse voltage is sequentially increased. It is.
  • FIG. 4 is a diagram illustrating the configuration of the ceramic metal halide lamp according to the present embodiment.
  • FIG. 5 is a view showing another embodiment of the translucent heat diffusing member shown in FIG.
  • FIG. 6 is a diagram illustrating a circuit of a metal halide lamp.
  • FIG. 1 is a diagram for explaining a configuration of a ceramic metal halide lamp 10 in which two current arc tubes are enclosed. As shown in the drawing, the lamp 10 has two arc tubes 4-1 and 4-2 enclosed inside an outer bulb 2. A base 6 is joined to one end of the outer sphere 2. Each arc tube 4-1 and 4-2 is supported at a predetermined position by a mount 8.
  • the arc tubes 4-1 and 4-2 are both made of translucent ceramics, the maximum outer diameter of the light emitting portion is 15.2 mm, and the shortest distance of the outer surface is 10.8 mm. In this way, the two arc tubes are arranged adjacent to each other at a close distance.
  • the outer sphere 2 is made of translucent hard glass such as borosilicate glass, for example.
  • the outer sphere 2 has a BT shape having a central portion of the maximum diameter, a lower top portion as viewed in the figure, and a neck portion connected to the upper base.
  • the outer sphere 2 includes a transparent outer sphere that linearly transmits the light from the arc tube 4 as it is, and a diffusion outer sphere that diffuses and transmits the light to some extent with a white frosted glass inner surface. is there.
  • starting means lighting the arc tube in a low temperature state (that is, the state of the lamp is the same as the normal outside temperature around the lamp, room temperature, etc.).
  • restart refers to turning off a lamp that has been turned on once, and then turning on a light-emitting tube in a high temperature state before sufficiently cooling. Examples of the lamp in the high temperature include a lamp in a case where an extinguished arc tube is turned on again in a short time, and an extinguished adjacent arc tube heated by an lit arc tube is turned on.
  • the arc tube that is lit is referred to as “one arc tube”, and the arc tube that is extinguished is referred to as “the other arc tube”.
  • the inventors of the present invention recognize that the fact that the temperature of the gas enclosed in the other arc tube rises due to heat transfer from the one arc tube is a cause that cannot be restarted in a short time. Furthermore, in conventional high-pressure sodium lamps and the like, the outer bulb is in a vacuum state, so the amount of heat transferred by heat radiation between the two arc tubes is very small. Recognizes that since it is filled with a predetermined inert gas (typically argon Ar, nitrogen N), the amount of heat transfer is large, making restarting in a short time even more difficult.
  • the gas pressure is in the range of 20 to 70 kPa.
  • FIG. 2 is a graph for explaining the pulse voltage-restart time characteristic RS-A when the pulse voltage Vp is sequentially increased in the lamp shown in FIG.
  • the output of this lamp is 190 W and is currently used with a pulse voltage of 2.3 kV.
  • the lamp has a withstand voltage value as a product specification.
  • the withstand voltage value is determined by the withstand voltage value of the base, the distance between different potential conductors, and the like.
  • the withstand voltage value is generally about 5.0 kV. Therefore, the restart time t was obtained by changing the pulse voltage Vp between 2.3 and 4.5 kV in consideration of a 10% margin.
  • the restart time of pulse voltage 2.3kV is about 8 minutes, but if this can be reduced to about 4 minutes by any means, the restart time t should be within 1 minute as long as the same characteristics are drawn. Can be shortened.
  • the restart time of the lamp with one arc tube is 15 minutes or more.
  • the restart time when the two arc tubes are alternately lit is about 8 minutes.
  • the starting time of the lamp in the cold state (room temperature) is several seconds. Accordingly, in the case of two arc tubes, the restart time of the pulse voltage 2.3 kV can be expected to be about 4 minutes if the temperature rise of the arc tube during extinction can be suppressed to less than half the current level.
  • a heat shielding member (also referred to as a “heat diffusion member”) is arranged between one light-emitting tube that is turned on and the other light-emitting tube that is turned off.
  • heat from one arc tube is diffused by the heat shielding member, and is less transmitted to the other arc tube, or the other light emission Stop concentrating on the tube.
  • this heat shielding member is disposed between the arc tubes, it needs to be translucent.
  • transparent quartz glass can be used as the material of such a light-transmitting heat shielding member.
  • it is not limited to this.
  • FIG. 3 is a graph showing the effect of the translucent heat shielding member.
  • the pulse voltage-restart time characteristic RS-A (indicated by ⁇ ) is the case where the light-transmissive heat shielding member described in FIG. 2 is not provided, and the pulse voltage-restart time characteristic RS-B (indicated by ⁇ ) is This is a case where an appropriate translucent heat shielding member is disposed.
  • the shortening of the restart time due to the arrangement of the translucent heat shielding member is indicated by Tt
  • Tv. ing the shortening of the restart time by increasing the pulse voltage
  • the restart time was about 8 minutes in the characteristic RS-A, but it was restarted in the characteristic RS-B by placing a translucent heat shield member between the two arc tubes. The time was shortened to 4 minutes or less. Further, by sequentially increasing the pulse voltage 2.3 kV, the restart time can be shortened within 3 minutes at the pulse voltage 2.5 to 4.5 kV, and further at the pulse voltage 3.0 to 4.5 kV, The restart time could be shortened within 1 minute.
  • FIG. 4A is a diagram illustrating the configuration of the ceramic metal halide lamp 10-1 according to the present embodiment. Compared with the lamp 10 of FIG. 1, a translucent heat shielding member 12 is disposed between the arc tubes 4-1 and 4-2. The relationship between the arc tubes 4-1 and 4-2 and the translucent heat shielding member 12 is as shown in FIG.
  • FIG. 5 is a view showing a modification of the translucent heat shielding member 12 used in the ceramic metal halide lamp shown in FIG.
  • the translucent heat shielding member 12 may be an arbitrary member as long as it is translucent and has good heat diffusion characteristics and is disposed between the two arc tubes. If each translucent heat shielding member has a shape surrounding one arc tube, it is more preferable as a heat shield between the arc tubes.
  • the translucent heat shielding members 12-1 and 12-2 are cylindrical members surrounding the arc tubes 4-1 and 4-2, respectively.
  • translucent heat shielding members 12-3 and 12-4 surround each arc tube, and each translucent heat shielding member has two test tube shapes having slightly different diameters.
  • the body is formed by combining glass tubes with each other, the body is cylindrical, and both ends are closed (there is a lead wire opening connected to the arc tube).
  • FIG. 6 is a diagram for explaining a drive circuit for a ceramic metal halide lamp. Power is supplied to the ceramic metal halide lamp 10 from a ballast 16 connected to a commercial AC power supply (100/200 V, 50/60 Hz) 14.
  • the ballast 16 includes a choke coil 17 and an igniter (starting circuit) 18.
  • the arc tubes 4-1 and 4-2 in the lamp are electrically connected in parallel to the power supply side.
  • the lamp itself does not have a starting circuit, and one arc tube that is easily lit is turned on by a pulse from the ballast 16.
  • the present invention has been described along the embodiment of the two arc tube lamps, but the present invention is also applicable to three or more arc tube lamps.
  • An appropriate translucent heat shielding member is disposed between the arc tubes, and the pulse voltage is sequentially increased to determine a pulse voltage that can obtain a desired restart time.
  • a pulse voltage that can obtain a desired restart time can be determined according to such a procedure.

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
PCT/JP2012/062869 2011-06-15 2012-05-18 セラミックメタルハライドランプ照明装置 WO2012172926A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012800119325A CN103403838A (zh) 2011-06-15 2012-05-18 陶瓷金属卤化物灯照明装置

Applications Claiming Priority (2)

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JP2011133708A JP5305051B2 (ja) 2011-06-15 2011-06-15 セラミックメタルハライドランプ照明装置
JP2011-133708 2011-06-15

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103727463A (zh) * 2013-12-31 2014-04-16 戴建国 一种陶瓷复合金属灯
CN104456167A (zh) * 2013-09-25 2015-03-25 海洋王（东莞）照明科技有限公司 气体放电灯具
CN104456422A (zh) * 2013-09-25 2015-03-25 海洋王（东莞）照明科技有限公司 气体放电灯具的反射器
CN104456169A (zh) * 2013-09-25 2015-03-25 海洋王（东莞）照明科技有限公司 气体放电灯具
CN104465313A (zh) * 2013-09-25 2015-03-25 海洋王（东莞）照明科技有限公司 气体放电光源

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200496006Y1 (ko) 2020-07-09 2022-10-12 공기영 차열판이 설치된 메탈 할라이드 램프

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Publication number Priority date Publication date Assignee Title
JPS54154174A (en) * 1978-05-26 1979-12-05 Mitsubishi Electric Corp Discharge lamp
JP2003100256A (ja) * 2001-09-25 2003-04-04 Toshiba Lighting & Technology Corp 高圧金属蒸気放電ランプおよび照明器具
JP2008234871A (ja) * 2007-03-16 2008-10-02 Osram Melco Toshiba Lighting Kk 高圧放電ランプおよび照明器具
JP2010045055A (ja) * 2009-11-25 2010-02-25 Osram-Melco Ltd 高圧放電灯点灯装置
JP2012038665A (ja) * 2010-08-10 2012-02-23 Iwasaki Electric Co Ltd 複数本の発光管を有するセラミックメタルハライドランプ

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JP2000090879A (ja) * 1998-09-14 2000-03-31 Osuramu Melco Kk メタルハライドランプ
JP2001319791A (ja) * 2000-05-10 2001-11-16 Matsushita Electric Ind Co Ltd 蛍光ランプ点灯装置
JP3528794B2 (ja) * 2000-12-20 2004-05-24 松下電器産業株式会社 蛍光ランプ
JP2002190281A (ja) * 2000-12-22 2002-07-05 Matsushita Electric Ind Co Ltd 高圧放電ランプ
JP3990582B2 (ja) * 2001-06-29 2007-10-17 松下電器産業株式会社 メタルハライドランプ
US6791267B2 (en) * 2001-10-02 2004-09-14 Ngk Insulators, Ltd. High pressure discharge lamps, lighting systems, head lamps for automobiles and light emitting vessels for high pressure discharge lamps
WO2005010921A1 (ja) * 2003-07-25 2005-02-03 Matsushita Electric Industrial Co., Ltd. メタルハライドランプ
JP4680663B2 (ja) * 2005-04-28 2011-05-11 篠田プラズマ株式会社 プラズマチューブアレイ

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54154174A (en) * 1978-05-26 1979-12-05 Mitsubishi Electric Corp Discharge lamp
JP2003100256A (ja) * 2001-09-25 2003-04-04 Toshiba Lighting & Technology Corp 高圧金属蒸気放電ランプおよび照明器具
JP2008234871A (ja) * 2007-03-16 2008-10-02 Osram Melco Toshiba Lighting Kk 高圧放電ランプおよび照明器具
JP2010045055A (ja) * 2009-11-25 2010-02-25 Osram-Melco Ltd 高圧放電灯点灯装置
JP2012038665A (ja) * 2010-08-10 2012-02-23 Iwasaki Electric Co Ltd 複数本の発光管を有するセラミックメタルハライドランプ

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104456167A (zh) * 2013-09-25 2015-03-25 海洋王（东莞）照明科技有限公司 气体放电灯具
CN104456422A (zh) * 2013-09-25 2015-03-25 海洋王（东莞）照明科技有限公司 气体放电灯具的反射器
CN104456169A (zh) * 2013-09-25 2015-03-25 海洋王（东莞）照明科技有限公司 气体放电灯具
CN104465313A (zh) * 2013-09-25 2015-03-25 海洋王（东莞）照明科技有限公司 气体放电光源
CN104456169B (zh) * 2013-09-25 2019-01-15 海洋王（东莞）照明科技有限公司 气体放电灯具
CN103727463A (zh) * 2013-12-31 2014-04-16 戴建国 一种陶瓷复合金属灯

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JP5305051B2 (ja) 2013-10-02
CN103403838A (zh) 2013-11-20
JP2013004286A (ja) 2013-01-07

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