CN101150036A - Porcelain metal halid lamp electrode - Google Patents
Porcelain metal halid lamp electrode Download PDFInfo
- Publication number
- CN101150036A CN101150036A CNA2006101161985A CN200610116198A CN101150036A CN 101150036 A CN101150036 A CN 101150036A CN A2006101161985 A CNA2006101161985 A CN A2006101161985A CN 200610116198 A CN200610116198 A CN 200610116198A CN 101150036 A CN101150036 A CN 101150036A
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- China
- Prior art keywords
- niobium
- tungsten
- rod
- bar
- metal halid
- 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.)
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- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
This invention relates to an electrode of a ceramic metal halid lamp composed of a niobium rod, a niobium bushing, a tungsten core rod, tungsten filaments (or Mo), screw on the tungsten core rod and an electrode head on the end of the rod, in which, one end of the rod winded with the electrode head made up of tungsten filament screw is plugged into a cavity of a ceramic metal halide lamp, part of the other end is winded with the filament screw and the outer diameter of which keeps 0.04-0.06mm distance with the inernal diameter of fine ceramic pipes at both ends of a plugged discharge tube, and the remain part of the rod is plugged into the niobium bushing formed by wilding the niobium tube and its rod or sealing earth lead.
Description
Affiliated technical field:
The present invention relates to the porcelain metal halid lamp electrode of a kind of 50w to 200w, be applicable to the ceramic metal helide lamp of 50w to 200w.
Background technology:
Present known porcelain metal halid lamp electrode has two kinds of structures, and a kind of is that niobium bar, molybdenum rod and tungsten bar collimation are coaxial docking, and adopts laser welding method to make; Another kind of tungsten bar and the molybdenum rod of adopting inserts molybdenum rod in the niobium pin, and the niobium pin is the niobium boom end to be punched obtain after certain degree of depth.Doing electrode with these two kinds of methods all has certain technical difficulty, and the metal of welding is subjected to the influence of different thermal coefficient of expansions, pad insufficient strength.
Summary of the invention
In order to overcome butt welding and the limited difficulty of the niobium boom end punching degree of depth between molybdenum tungsten and the molybdenum rod niobium, the invention provides the most easy method and make the internal diameter and the tungsten rod diameter of 50w to 200w ceramic metal helide lamp two ends pottery tubule, special process the sealing wire that niobium sleeve and niobium bar weld mutually for electrode, then tungsten bar electrode is inserted in the niobium sleeve and put postwelding, become as a whole electrode.
The coupling of the outer surface diameter of the tungsten filament on the electrode (or molybdenum filament) spiral and the two ends of ceramic metal helide lamp pottery tubule can be according to different power designs, but will guarantee that interstice coverage that external and internal compositions exists is at 0.04～0.06mm.Effect of the present invention is obvious, processes easy.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the structural map of porcelain metal halid lamp electrode of the present invention.
Fig. 2 is the sectional structural map after electrode of the present invention is put into the ceramic metal helide lamp cell-shell.
1. electrodes among the figure, 2. Ceramic Balls cell-shell, the 3. tubule at Ceramic Balls cell-shell two ends, 4. niobium sleeve (welding niobium bar), 5. niobium rod seal lead-in wire, 6. tungsten rod, 7. tungsten filament helix electrode tip, 8. tungsten filament (or molybdenum filament) single-screw, 9. glass ring.
Embodiment
According to the electrode of the different capacity ceramic metal helide lamp of 50w, 70w, 100w, 150w, 200w design, by the length of the tubule (3) at Ceramic Balls cell-shell two ends and length and the outer dia of tungsten filament (or molybdenum filament) single-screw (8) and the length of niobium sleeve (welding niobium bar) (4) that internal diameter is determined electrode (1).Tungsten rod (6) inserts niobium sleeve (the welding niobium bar) length of (4), the diameter of tungsten rod (6) and niobium sleeve (welding niobium bar) the niobium sleeve internal diameter external diameter of (4) and the weld length of niobium bar and niobium sleeve sees Table 1.Tungsten filament helix electrode tip (7) is gone up by tungsten rod (6) and is made around a few circle tungsten filaments, determines the insertion depth of niobium sleeve (welding niobium bar) (4) according to different capacity, and firmness and sealing by fusing length will guarantee glass ring (9) sealing the time.
The data list of table 1 electrode of the present invention and ceramic metal helide lamp coupling
Claims (5)
1. porcelain metal halid lamp electrode, the tungsten rod, niobium sleeve and niobium bar three parts that are twined tungsten filament (or molybdenum filament) spiral by the outside constitute; Tungsten rod inserts niobium sleeve, and the niobium sleeve other end inserts niobium bar and welding, and the niobium bar becomes the sealing of lamp and draws lead.
2. porcelain metal halid lamp electrode according to claim 1 is characterized in that: tungsten rod and niobium sleeve, niobium bar are complementary.
3. porcelain metal halid lamp electrode according to claim 1 is characterized in that: carry out at niobium pipe place with earthenware sealing-in place.
4. porcelain metal halid lamp electrode according to claim 1 is characterized in that: tungsten rod inserts the degree of depth of niobium pipe at 3-4mm, and lamp power is within 50-200W.
5. porcelain metal halid lamp electrode according to claim 1 is characterized in that: the internal diameter gap error of the outer dia of tungsten filament (or molybdenum wire) spiral on the tungsten bar and the ceramic tubule at ceramic metal helide lamp ceramic discharge tube two ends is at 0.04-0.06mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101161985A CN101150036A (en) | 2006-09-19 | 2006-09-19 | Porcelain metal halid lamp electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101161985A CN101150036A (en) | 2006-09-19 | 2006-09-19 | Porcelain metal halid lamp electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101150036A true CN101150036A (en) | 2008-03-26 |
Family
ID=39250486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101161985A Pending CN101150036A (en) | 2006-09-19 | 2006-09-19 | Porcelain metal halid lamp electrode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101150036A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103021788A (en) * | 2012-12-19 | 2013-04-03 | 浙江宇光照明科技有限公司 | Ceramic metal halide lamp electrode |
-
2006
- 2006-09-19 CN CNA2006101161985A patent/CN101150036A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103021788A (en) * | 2012-12-19 | 2013-04-03 | 浙江宇光照明科技有限公司 | Ceramic metal halide lamp electrode |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |