KR20030079388A - Discharge pole structure of discharge lamp - Google Patents

Discharge pole structure of discharge lamp Download PDF

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Publication number
KR20030079388A
KR20030079388A KR1020020018384A KR20020018384A KR20030079388A KR 20030079388 A KR20030079388 A KR 20030079388A KR 1020020018384 A KR1020020018384 A KR 1020020018384A KR 20020018384 A KR20020018384 A KR 20020018384A KR 20030079388 A KR20030079388 A KR 20030079388A
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South Korea
Prior art keywords
electrode
discharge
discharge lamp
electrodes
light emitting
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KR1020020018384A
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Korean (ko)
Inventor
차무경
서상균
윤영일
하영덕
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유니램 주식회사
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Priority to KR1020020018384A priority Critical patent/KR20030079388A/en
Publication of KR20030079388A publication Critical patent/KR20030079388A/en

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00Gas-discharge or vapour-discharge lamps
    • H01J61/02Details
    • H01J61/04Electrodes; Screens; Shields
    • H01J61/06Main electrodes
    • H01J61/073Main electrodes for high-pressure discharge lamps
    • H01J61/0732Main electrodes for high-pressure discharge lamps characterised by the construction of the electrode
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00Gas-discharge or vapour-discharge lamps
    • H01J61/02Details
    • H01J61/04Electrodes; Screens; Shields
    • H01J61/06Main electrodes
    • H01J61/073Main electrodes for high-pressure discharge lamps
    • H01J61/0735Main electrodes for high-pressure discharge lamps characterised by the material of the electrode

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  • Discharge Lamps And Accessories Thereof (AREA)

Abstract

PURPOSE: A discharge electrode structure is provided to prevent an oscillation of current, while permitting an arc to be generated only at an end of the center of the electrode. CONSTITUTION: An alternating current circuit discharge lamp(50) comprises a luminous tube(10) having a predetermined closed space formed at the inside of the luminous tube; electrodes(12,14) inserted into both sides of the luminous tube; and a mercury(16) sealed in the luminous tube. Each of the electrodes has a rounded portion(15) formed at both ends of the electrode. The length of the rounded portion is longer than two times or more a distance(17) of the electrode.

Description

교류회로 방전등에서의 방전전극 구조{DISCHARGE POLE STRUCTURE OF DISCHARGE LAMP}Discharging electrode structure in AC circuit discharge lamp {DISCHARGE POLE STRUCTURE OF DISCHARGE LAMP}

본 발명은 초고압 수은등에 관한 것으로서, 특히 점등을 위해 교류전원을 사용하는 초고압 수은등의 전극 끝단의 형상을 상기 전극 직경의 최소 2배이상의 크기를 가지도록 라운딩지게 형성함으로서 전류의 떨림을 방지할 수 있는 교류회로 방전등에서의 방전전극 구조에 관한 것이다.The present invention relates to an ultra-high pressure mercury lamp, in particular, by forming the shape of the end of the electrode of the ultra-high pressure mercury lamp using an AC power source for lighting to have a size of at least twice the diameter of the electrode to prevent the shaking of the current Disclosed is a discharge electrode structure in an AC circuit discharge lamp.

일반적으로 고압 방전등은 밀폐된 소정의 용기 내에 고압에 의한 아아크(Arc)를 발생시키기 위한 전극이 마련되어 있고, 그 밀폐된 용기의 공간 내에는 소정의 수은이 봉입 되어 있다.Generally, the high-pressure discharge lamp is provided with an electrode for generating arc by high pressure in a predetermined container sealed, and predetermined mercury is enclosed in the space of the sealed container.

이와 같은 고압 방전등중의 하나인 종래의 초고압 수은등은 방전관내에 수은(Hg),아르곤(Ar)이 봉입되어 있으며, 이에 의해 방전을 일으키게 되는데, 이때 방전관 내의 초기 진공도는 약 4 ×105Torr 이상으로 배기시킨 상태이며, 전극간의 거리는 10 ~ 30mm, 방전관의 네정은 1.0 ~ 2.0mm로 하여 사용하였다. 이와 같은 초고압 수은등은 방전관의 내부기압이 100기압 이상이고, 그 온도가 1400-1500°C의 고온에서 동작하게 된다.As one of the conventional ultra-high pressure mercury lamp of such high pressure discharge lamp is a mercury (Hg), argon (Ar) is sealed in the discharge tube, there is cause for discharge by this, wherein the initial degree of vacuum of at least about 4 × 10 5 Torr in the discharge tube It was exhausted, the distance between electrodes was 10-30 mm, and the four tubes of the discharge tube were 1.0-2.0 mm, and it used. The ultra-high pressure mercury lamp has an internal pressure of 100 atm or more in a discharge tube, and its temperature is operated at a high temperature of 1400-1500 ° C.

한편, 상기와 같은 조건하에서 동작하는 종래의 초고압 수은등의 구성을 도 1a와 도 1b를 참조해 간략히 설명하면 다음과 같다. 우선 상기 수은등은 타원형의 형상을 가지며 석영재질로 된 발광관(10)으로 구성되며, 상기 발광관(110)의 내부 에는 수은(116)이 봉입 되며, 또한 상기 발광관(110)의 양측으로는 원형의 전극(112, 114)이 각각 삽입된다. 그리고 도 2b에 도시한 바와 같이 상기 전극(112, 114)의 양 끝단은 평면의 형상을 가지게 된다.On the other hand, the configuration of a conventional ultra-high pressure mercury lamp operating under the above conditions will be briefly described with reference to FIGS. 1A and 1B. First of all, the mercury lamp The light emitting tube 10 has an oval shape and is made of a quartz material. The mercury 116 is enclosed in the light emitting tube 110, and circular electrodes are formed on both sides of the light emitting tube 110. 112 and 114 are inserted respectively. As shown in FIG. 2B, both ends of the electrodes 112 and 114 have a planar shape.

하지만 교류전원을 사용하는 종래의 초고압 수은등의 경우 1초에 100~120회이상 점등 및 소등을 반복하는 환경에서 사용되는데, 이때 상기 전극 끝단의 형상이 종래와 같이 평면에 가깝게 형성된 경우에는 각각의 전극(112, 114)에서 발산되는 방전위치가 원주방향의 모든 평면 모서리부로 분산되어 방전위치가 변화하게 되고 이와 같은 방전부의 미소한 차이에 의해 전류의 떨림이 발생하는 문제점이 있었다.However, in the case of a conventional ultra-high pressure mercury lamp using an AC power source, it is used in an environment of repeating lighting and turning off more than 100 to 120 times per second. In this case, when the shape of the electrode tip is formed as close to a plane as in the prior art, each electrode ( 112 and 114, the discharge position is distributed to all the flat edges in the circumferential direction, the discharge position is changed and there is a problem that the current tremor occurs due to such a slight difference in the discharge portion.

따라서, 상기한 바와 같은 문제점을 해결하기 위한 본 발명의 목적은 발광관의 양측에 삽입되는 전극의 끝단부의 길이를 상기 전극 직경의 2배이상의 크기를 가지도록 반원형으로 라운딩지게 형성함으로서 양 전극간에서 가장 가까운 부분이 전극 축의 중심부에 한정되어 점등위치가 균일하게 됨으로서 전류의 떨림을 극소화 할 수 있는 교류회로 방전등에서의 방전전극 구조를 제공함에 있다.Accordingly, an object of the present invention for solving the above problems is to form a rounded shape in a semi-circular shape so that the length of the end of the electrode inserted into the both sides of the light emitting tube has a size more than twice the diameter of the electrode between the two electrodes The closest portion is limited to the center of the electrode shaft, and the lighting position is uniform, thereby providing a discharge electrode structure in an AC circuit discharge lamp that can minimize the vibration of the current.

본 발명의 다른 목적은 전극의 끝단부의 길이를 반원형으로 라운딩지게 형성함으로서 전극 중심부의 끝단부에서만 아아크(Arc)가 발생하는 교류회로 방전등에서의 방전전극 구조를 제공함에 있다.It is another object of the present invention to provide a discharge electrode structure in an AC circuit discharge lamp in which arc is generated only at the end portion of an electrode center by forming the end portion of the electrode to be rounded in a semicircular shape.

상기한 바와 같은 목적을 달성하기 위한 본 발명은 내부에 소정의 밀폐공간을 구비한 발광관과, 상기 발광관의 양측으로 전극이 각각 삽입되며, 상기 발광관의 내부에는 수은이 봉입된 통상의 교류회로 방전등에 있어서, 상기 전극의 양끝단부에는 라운딩부가 형성됨을 특징으로 한다.The present invention for achieving the above object is a light emitting tube having a predetermined sealed space therein, and the electrode is inserted into both sides of the light emitting tube, respectively, and the ordinary alternating current in which mercury is sealed inside the light emitting tube In the furnace discharge lamp, a rounding part is formed at both ends of the electrode.

도 1a는 종래의 교류회로 방전등에서의 방전전극 구조의 전체 형상을 개략적으로 도시한 정면도.1A is a front view schematically showing the overall shape of a discharge electrode structure in a conventional AC circuit discharge lamp;

도 1b는 도 1a의 주요 부분인 전극의 형상 및 전류의 흐름을 도시한 개략도.FIG. 1B is a schematic diagram showing the flow of current and the shape of the electrode, which is the main part of FIG. 1A; FIG.

도 2a는 본 발명의 바람직한 일 실시 예에 의한 교류회로 방전등에서의 방전전극 구조의 전체 형상을 개략적으로 도시한 정면도.Figure 2a is a front view schematically showing the overall shape of the discharge electrode structure in the AC circuit discharge lamp according to an embodiment of the present invention.

도 2b는 도 1a의 주요 부분인 전극의 형상 및 전류의 흐름을 도시한 개략도.FIG. 2B is a schematic diagram illustrating the flow of current and the shape of the electrode, which is the main part of FIG. 1A; FIG.

<도면의 주요부분에 대한 부호의 설명><Description of Symbols for Main Parts of Drawings>

10: 발광관 12, 14: 전극10: light emitting tube 12, 14: electrode

16: 수은 50: 방전등16: mercury 50: discharge lamp

이하 본 발명의 바람직한 실시예의 상세한 설명이 첨부된 도면들을 참조하여 설명을 한다.DETAILED DESCRIPTION Hereinafter, a detailed description of a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

도 2a는 본 발명의 바람직한 일 실시 예에 의한 교류회로 방전등에서의 방전전극 구조의 전체 형상을 개략적으로 도시한 정면도이며, 도 2b는 도 1a의 주요 부분인 전극의 형상 및 전류의 흐름을 도시한 개략도이다.Figure 2a is a front view schematically showing the overall shape of the discharge electrode structure in the AC circuit discharge lamp according to an embodiment of the present invention, Figure 2b is a view showing the shape of the electrode and the flow of current that is the main part of Figure 1a Schematic diagram.

상기 도 2a 와 도 2b에 도시한 바와 같이 본 발명인 교류회로 방전등에서의 방전전극 구조는 전극(12, 14)의 양 끝단부에는 반원형상의 라운딩부(13, 15)가 각각 일체로 형성되며, 상기 라운딩부(13, 15)의 길이는 전술한 전극(12, 14)의 직경(17)의 2배이상 즉, 상기 전극(13, 15)의 직경(17)을 "d"라 가정하면 전술한 라운딩부(13, 15)는 최소 "2d"이상이 되도록 형성함으로서 상기 전극간의 가장 가까운 부분이 전극 축의 중심부에 한정되어 점등위치가 균일하게 되어 전류의 떨림이 감소하게 된다.As shown in FIG. 2A and FIG. 2B, in the discharge circuit structure of the AC circuit discharge lamp of the present invention, semicircular rounding portions 13 and 15 are integrally formed at both ends of the electrodes 12 and 14, respectively. The length of the rounding parts 13 and 15 is more than twice the diameter 17 of the electrodes 12 and 14, that is, the diameter 17 of the electrodes 13 and 15 is assumed to be “d”. The rounding parts 13 and 15 are formed to be at least "2d" so that the closest part between the electrodes is limited to the center of the electrode shaft so that the lighting position is uniform, thereby reducing the vibration of the current.

이상으로 살펴본 바와 같이, 본 발명은 발광관의 양측에 삽입되는 전극의 끝단부의 길이를 상기 전극 직경의 2배이상의 크기를 가지도록 반원형으로 라운딩지게 형성함으로서 양 전극간에서 가장 가까운 부분이 전극 축의 중심부에 한정되어 점등위치가 균일하게 됨으로서 전류의 떨림을 극소화 할 수 있는 장점이 있으며, 또한 상기와 같이 전극의 끝단부를 반원형으로 라운딩지게 형성함으로서 전극 중심부의 끝단부에서만 아아크(Arc)가 발생하는 장점이 있다.As described above, in the present invention, the length of the end portions of the electrodes inserted into the both sides of the light emitting tube is formed to be rounded in a semicircular shape so as to have a size larger than two times the diameter of the electrode, so that the closest portion between the two electrodes is the center of the electrode shaft. It has the advantage of minimizing the tremor of the current by being uniform in the lighting position, and by forming the end of the electrode rounded semi-circular as described above, the arc is generated only at the end of the electrode center have.

Claims (2)

내부에 소정의 밀폐공간을 구비한 발광관(10)과, 상기 발광관(10)의 양측으로 전극(12, 14)이 각각 삽입되며, 상기 발광관(10)의 내부에는 수은(16)이 봉입된 통상의 교류회로 방전등(50)에 있어서,The light emitting tube 10 having a predetermined sealed space therein and the electrodes 12 and 14 are inserted into both sides of the light emitting tube 10, and mercury 16 is formed inside the light emitting tube 10. In the sealed normal AC circuit discharge lamp 50, 상기 전극(12, 14)의 양끝단부에는 라운딩부(15)가 형성됨을 특징으로 하는 교류회로 방전등(50)에서의 방전전극 구조.Discharge electrode structure of the AC circuit discharge lamp 50, characterized in that the rounding portion 15 is formed at both ends of the electrode (12, 14). 제 1항에 있어서, 상기 라운딩부(15)의 길이는 상기 전극(12, 14)의 직경(17)의 2배이상으로 형성됨을 특징으로 하는 교류회로 방전등(50)에서의 방전전극 구조.2. The discharge electrode structure of an alternating current discharge lamp (50) according to claim 1, wherein the length of the rounding portion (15) is formed at least twice the diameter (17) of the electrodes (12, 14).
KR1020020018384A 2002-04-04 2002-04-04 Discharge pole structure of discharge lamp KR20030079388A (en)

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Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61142367U (en) * 1985-02-22 1986-09-03
JPH0276463U (en) * 1988-11-30 1990-06-12
JPH02220348A (en) * 1988-12-19 1990-09-03 Patent Treuhand Ges Elektr Gluehlamp Mbh Low power high voltage discharge lamp and method of operating the lamp
JPH03283253A (en) * 1990-03-29 1991-12-13 Ushio Inc Short arc type discharge lamp
JPH04280057A (en) * 1991-03-06 1992-10-06 Toshiba Lighting & Technol Corp Electrode for discharge lamp
US5484315A (en) * 1991-10-11 1996-01-16 Patent-Treuhand-Gesellschaft F. Elektrische Gluehlampen Mbh Method for producing a metal-halide discharge lamp with a ceramic discharge vessel
JP2001216936A (en) * 2000-02-04 2001-08-10 Ushio Inc Flash dischage lamp
EP1148534A1 (en) * 2000-04-18 2001-10-24 Matsushita Electric Industrial Co., Ltd. Electrodes for a high pressure discharge lamp, high pressure discharge lamps and methods of manufacturing therefor
JP2001312997A (en) * 2000-04-28 2001-11-09 Matsushita Electric Ind Co Ltd High-pressure discharge lamp, its producing method and its lighting method and device
JP2001325918A (en) * 2000-05-12 2001-11-22 Matsushita Electric Ind Co Ltd High-pressure discharge lamp
JP2003151492A (en) * 2001-11-08 2003-05-23 Ushio Inc Short arc type extra-high pressure discharge lamp

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61142367U (en) * 1985-02-22 1986-09-03
JPH0276463U (en) * 1988-11-30 1990-06-12
JPH02220348A (en) * 1988-12-19 1990-09-03 Patent Treuhand Ges Elektr Gluehlamp Mbh Low power high voltage discharge lamp and method of operating the lamp
JPH03283253A (en) * 1990-03-29 1991-12-13 Ushio Inc Short arc type discharge lamp
JPH04280057A (en) * 1991-03-06 1992-10-06 Toshiba Lighting & Technol Corp Electrode for discharge lamp
US5484315A (en) * 1991-10-11 1996-01-16 Patent-Treuhand-Gesellschaft F. Elektrische Gluehlampen Mbh Method for producing a metal-halide discharge lamp with a ceramic discharge vessel
JP2001216936A (en) * 2000-02-04 2001-08-10 Ushio Inc Flash dischage lamp
EP1148534A1 (en) * 2000-04-18 2001-10-24 Matsushita Electric Industrial Co., Ltd. Electrodes for a high pressure discharge lamp, high pressure discharge lamps and methods of manufacturing therefor
JP2001312997A (en) * 2000-04-28 2001-11-09 Matsushita Electric Ind Co Ltd High-pressure discharge lamp, its producing method and its lighting method and device
JP2001325918A (en) * 2000-05-12 2001-11-22 Matsushita Electric Ind Co Ltd High-pressure discharge lamp
JP2003151492A (en) * 2001-11-08 2003-05-23 Ushio Inc Short arc type extra-high pressure discharge lamp

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