CN100433238C - High brightness electrode for super high pressure mercury lamp - Google Patents
High brightness electrode for super high pressure mercury lamp Download PDFInfo
- Publication number
- CN100433238C CN100433238C CNB200610020470XA CN200610020470A CN100433238C CN 100433238 C CN100433238 C CN 100433238C CN B200610020470X A CNB200610020470X A CN B200610020470XA CN 200610020470 A CN200610020470 A CN 200610020470A CN 100433238 C CN100433238 C CN 100433238C
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- electrode
- pressure mercury
- mercury lamp
- discharge end
- high brightness
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Abstract
The present invention discloses a high brightness electrode for a super high pressure mercury lamp. The discharge end of an electrode (1) is provided with a pole tip (11) of the electrode in a shape of a conical tip, and the pole tip (11) of the electrode is formed by that tungsten welding fluxes adopt an argon arc welding method to weld the discharge end. When the high brightness electrode is used for the super high pressure mercury lamp, electric arcs which are generates have the advantages of thinness, high brightness and long service life.
Description
Affiliated field
The present invention relates to a kind of high brightness electrode that is used for ultrahigh pressure mercury lamp.
Background technology
Ultrahigh pressure mercury lamp belongs to a kind of desirable point-source of light, and this lamp produces strong light in the space of minimum, and photochromic abundant, and the colour temperature height is mainly used in projecting apparatus and other shadow casting technique field that little liquid crystal board high brightness is exported.The interior high-pressure mercury vapor that produces of electric arc tube that the ultrahigh pressure mercury lamp utilization is filled with mercury discharges, thereby obtains the light source of visible light.The electrode of high-pressure mercury lamp is that tungsten is made, and the tungsten electrode front end is a discharge end, and existing tungsten electrode discharge end parts is flat or circular-arc rather than cone tip shape, and its electrical discharge arc is thick, density is low, brightness is low; And discharge end parts is without special processing, and its density is low, high temperature resistant, the poor performance of high pressure.During work, the extreme temperatures of discharge end, and bear high pressure, big electric current, discharge end can melt gradually, burn.Thereby two distance between electrodes are increased, and electrical discharge arc is elongated, causes modulating voltage to raise, and focus changes, the electric arc chap, and the brightness of lamp descends.
Summary of the invention
The purpose of this invention is to provide a kind of high brightness electrode that is used for ultrahigh pressure mercury lamp, this high brightness electrode is used in the ultrahigh pressure mercury lamp, and the electric arc of generation is thin, brightness is high, long service life.
The present invention solves its technical problem, the technical scheme that is adopted is: a kind of high brightness electrode that is used for ultrahigh pressure mercury lamp, the coil that comprises discharge end one side on bar-shaped tungsten electrode and the bar-shaped tungsten electrode, its design feature is: the discharge end of electrode is the electrode pole tip of cone tip shape, and welding generates this electrode pole tip to discharge end for the tungsten scolder adopts argon arc welding method.
Compared with prior art, the invention has the beneficial effects as follows:
1, discharge end is cone tip shape, and its electrical discharge arc is thin, density is high, and brightness obviously strengthens, and improves 2-3 doubly than the electrode brightness of existing ultrahigh pressure mercury lamp.
2 and because the tapered tip portion of the very high density that the end of electrode is the method that adopts argon arc welding to be piled with the tungsten welding material makes the performance of bearing high temperature, high pressure and big electric current of discharge end obviously improve.Long-term work under rated power, the electrode discharge end can not be melted basically, burn; Lamp is when operate as normal, and it is to belong to the circulation of the tungsten of normal ultrahigh pressure mercury lamp that tungsten has the trace evaporation.Therefore, high brightness electrode of the present invention can keep pole tip shape invariance, its long service life for a long time.
The invention will be further described below in conjunction with the drawings and specific embodiments.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention.
Fig. 2 is that the electrode of the embodiment of the invention is assemblied in the structural representation in the ultrahigh pressure mercury lamp.
Embodiment
Embodiment
Fig. 1 illustrates, a kind of embodiment of the present invention is: a kind of high brightness electrode that is used for ultrahigh pressure mercury lamp, comprise the upward coil (2) of discharge end one side of bar-shaped tungsten electrode (1) and bar-shaped tungsten electrode (1), the discharge end of electrode (1) is the electrode pole tip (11) of cone tip shape, and welding generates this electrode pole tip (11) to discharge end for the tungsten scolder adopts argon arc welding method.
Fig. 2 illustrates, during use, adopt prior art with two electrode 1 relative fixed of the present invention in the both sides of electric arc tube 3, make the pole tip of its two electrode relative, and in the discharge space 4 of electric arc tube, charge into mercury, argon gas and tungsten recyclegas get final product.
Claims (1)
1, a kind of high brightness electrode that is used for ultrahigh pressure mercury lamp, comprise the upward coil (2) of discharge end one side of bar-shaped tungsten electrode (1) and bar-shaped tungsten electrode (1), it is characterized in that: the discharge end of described electrode (1) is the electrode pole tip (11) of cone tip shape, and welding generates this electrode pole tip (11) to discharge end for the tungsten scolder adopts argon arc welding method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610020470XA CN100433238C (en) | 2006-03-13 | 2006-03-13 | High brightness electrode for super high pressure mercury lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610020470XA CN100433238C (en) | 2006-03-13 | 2006-03-13 | High brightness electrode for super high pressure mercury lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1822309A CN1822309A (en) | 2006-08-23 |
| CN100433238C true CN100433238C (en) | 2008-11-12 |
Family
ID=36923517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200610020470XA Expired - Fee Related CN100433238C (en) | 2006-03-13 | 2006-03-13 | High brightness electrode for super high pressure mercury lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100433238C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102163534B (en) * | 2011-03-15 | 2012-08-22 | 上海浩也光电科技有限公司 | Ultrahigh-voltage metal halogen and mercury lamp |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1090809C (en) * | 1994-05-03 | 2002-09-11 | 皇家菲利浦电子有限公司 | High-pressure discharge lamp |
| CN1407592A (en) * | 2001-09-13 | 2003-04-02 | 优志旺电机株式会社 | Short arc ultrahigh voltage discharge lamp |
| CN1151537C (en) * | 1997-09-04 | 2004-05-26 | 电灯专利信托有限公司 | Electrode and method and manufacturing apparatus thereof |
| JP2004164996A (en) * | 2002-11-13 | 2004-06-10 | Iwasaki Electric Co Ltd | Metallic vapor discharge lamp and high pressure mercury-vapor discharge lamp |
| CN1610041A (en) * | 2004-11-22 | 2005-04-27 | 中国科学院上海光学精密机械研究所 | Method for producing storing tungsten electrode |
| CN2919525Y (en) * | 2006-03-13 | 2007-07-04 | 成都三普电光源实业有限公司 | High-brightness electrode for supervoltage mercury lamp |
-
2006
- 2006-03-13 CN CNB200610020470XA patent/CN100433238C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1090809C (en) * | 1994-05-03 | 2002-09-11 | 皇家菲利浦电子有限公司 | High-pressure discharge lamp |
| CN1151537C (en) * | 1997-09-04 | 2004-05-26 | 电灯专利信托有限公司 | Electrode and method and manufacturing apparatus thereof |
| CN1407592A (en) * | 2001-09-13 | 2003-04-02 | 优志旺电机株式会社 | Short arc ultrahigh voltage discharge lamp |
| JP2004164996A (en) * | 2002-11-13 | 2004-06-10 | Iwasaki Electric Co Ltd | Metallic vapor discharge lamp and high pressure mercury-vapor discharge lamp |
| CN1610041A (en) * | 2004-11-22 | 2005-04-27 | 中国科学院上海光学精密机械研究所 | Method for producing storing tungsten electrode |
| CN2919525Y (en) * | 2006-03-13 | 2007-07-04 | 成都三普电光源实业有限公司 | High-brightness electrode for supervoltage mercury lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1822309A (en) | 2006-08-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WANG GUOHUA Free format text: FORMER OWNER: CHENGDU SANPU POWER RESOURCE INDUSTRY CO., LTD. Effective date: 20081114 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20081114 Address after: No. 1, unit 3, Dongfeng Road residential area, Sichuan, Chengdu, 11 Patentee after: Wang Guohua Address before: Five sets of Shiyang Industrial Park, Qingyun village, Shiyang District, Chengdu hi tech Zone, Sichuan Patentee before: Sanpu photoelectric Source Industry Co., Ltd., Chengdu |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081112 Termination date: 20100313 |