CN201274279Y - Ceramic metallic halogen lamp electrode - Google Patents
Ceramic metallic halogen lamp electrode Download PDFInfo
- Publication number
- CN201274279Y CN201274279Y CNU2008200365195U CN200820036519U CN201274279Y CN 201274279 Y CN201274279 Y CN 201274279Y CN U2008200365195 U CNU2008200365195 U CN U2008200365195U CN 200820036519 U CN200820036519 U CN 200820036519U CN 201274279 Y CN201274279 Y CN 201274279Y
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- China
- Prior art keywords
- tungsten
- bar
- tungsten bar
- thorium
- halogen lamp
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model relates to a ceramic metal halide lamp electrode which comprises a niobium rod and a tungsten rod or a thorium tungsten rod. A tungsten filament screw or a thorium tungsten screw is wound near the tungsten rod or on the head of the thorium tungsten rod as an electrode head; a molybdenum wire screw is wound in the middle of the tungsten rod; the space between the external diameter of the molybdenum wire screw and the internal diameter of tail pipes on both ends of the ceramic metal halide lamp is from 0.01 to 0.10 mm. The other end of the tungsten rod or the thorium tungsten rod is connected with the niobium rod by laser spot welding.
Description
Technical field:
The utility model belongs to the electric light source technology field, is specifically related to a kind of ceramic metal halogen lamp pole, is applicable to the manufacturing of the various power ceramic gold-halogen lamps of 20W-600W.
Background technology
At present mainly in the manufacturing of ceramic metal halogen lamp pole adopt three kinds of materials, be respectively tungsten (or thorium tungsten, tungsten alloy), molybdenum (or molybdenum alloy) and niobium.Wherein tungsten system electrode has anti-halide corrosion and the stable characteristics of thermionic emission under the high temperature as the top or the terminal of electrical discharge arc; The niobium bar has the coefficient of expansion close with ceramic arc tube, plays hermetic seal; And the fusing point of molybdenum plays interconnect function between last two kinds of metals.
The tungsten bar or the thorium tungsten bar of spiral coil will be wound with; The molybdenum rod that is wound with the molybdenum spiral coil is connected with the niobium bar is coaxial in order.Adopt laser welding method between three kinds of metal materials, the electrode connecting structure of finishing.Pad has two places, has both increased manufacturing cost, easily causes the deviation of axiality again.
Summary of the invention
The deviation of the axle degree that the utility model exists at above ceramic metal halogen lamp pole and increase cost, the purpose of this utility model are to provide a kind of technology simply and the ceramic metal halogen lamp pole of alignment excellence.
The technical scheme that its technical problem that solves the utility model adopts is: the ceramic metal halogen lamp pole that provides, structure as depicted in figs. 1 and 2, form by tungsten bar or thorium tungsten bar 2 and niobium bar 4, the head of its tungsten bar or thorium tungsten bar 2 is wound with tungsten filament helix circle or thoriatde-tungsten wire spiral coil 1, and tungsten bar or thorium tungsten bar 2 stretch out the length of spiral coil 1 at 0.1-3.0mm; The other end of tungsten bar or thorium tungsten bar 2 is connected with niobium bar 4, and the middle part of tungsten bar or thorium tungsten bar 2 is wound with molybdenum filament spiral coil 3.
In the utility model, being wound in the molybdenum filament spiral coil external diameter at described tungsten bar or thorium tungsten bar middle part and the spacing between the ceramic tail pipe internal diameter is 0.01-0.10mm.
In the utility model, the diameter of tungsten bar or thorium tungsten bar 2 is in the 0.2-1.5mm scope, as electronic emission material; The diameter of niobium bar 4 is used as the vacuum seal with ceramic tail pipe in the 0.4-2.0mm scope; The diameter of molybdenum filament 3 is in the 0.1-1.0mm scope, as preventing the corrosion of the interior metal halide of electric arc tube to niobium bar and scolder; The diameter of tungsten filament or thoriatde-tungsten wire 1 is in the 0.1-0.8mm scope, as the optimal heat electrode emission temperature that guarantees electrode head.
In the utility model, will be wound with the tungsten bar of tungsten spiral or molybdenum spiral or thorium tungsten bar and niobium bar respectively and put into special fixture, and with formation method in screen adjusted axiality, adopt the mode of laser spot welding to finish the connection of electrode then.
The beneficial effects of the utility model are: the characteristics of these two body ceramic metal halogen lamp poles are that technology is simple, alignment is excellent, cost reduces.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the front view of the utility model ceramic metal halogen lamp pole.
Fig. 2 is the axial cutaway view of the utility model ceramic metal halogen lamp pole.
Number in the figure: 1 is electrode head tungsten filament helix circle or thoriatde-tungsten wire spiral coil, and 2 is tungsten bar or thorium tungsten bar, and 3 is the molybdenum filament spiral coil, and 4 is the niobium bar.
Specific embodiment
According to the geometric parameter of different capacity arc tube for ceramic metal halide lamp, manufactured and designed the corresponding electrode structure.Concrete parameter is as shown in the table:
The utility model is described in further detail below in conjunction with the drawings and specific embodiments, but not as to qualification of the present utility model.The ceramic metal halogen lamp pole that the utility model provides, structure as depicted in figs. 1 and 2, be made up of tungsten bar or thorium tungsten bar 2 and niobium bar 4, the head of its tungsten bar or thorium tungsten bar 2 is wound with tungsten filament helix circle or thoriatde-tungsten wire spiral coil 1, and tungsten bar or thorium tungsten bar 2 stretch out the length of spiral coil 1 at 0.1-3.0mm; The other end of tungsten bar or thorium tungsten bar 2 is connected with niobium bar 4, and the middle part of tungsten bar or thorium tungsten bar 2 is wound with molybdenum filament spiral coil 3.
In the utility model, being wound in the molybdenum filament spiral coil external diameter at described tungsten bar or thorium tungsten bar middle part and the spacing between the ceramic tail pipe internal diameter is 0.01-0.10mm.
In the utility model, the diameter of tungsten bar or thorium tungsten bar 2 is in the 0.2-1.5mm scope, as electronic emission material; The diameter of niobium bar 4 is used as the vacuum seal with ceramic tail pipe in the 0.4-2.0mm scope; The diameter of molybdenum filament 3 is in the 0.1-1.0mm scope, as preventing the corrosion of the interior metal halide of electric arc tube to niobium bar and scolder; The diameter of tungsten filament or thoriatde-tungsten wire 1 is in the 0.1-0.8mm scope, as the optimal heat electrode emission temperature that guarantees electrode head.
Claims (3)
1, a kind of ceramic gold-halogen lamp electrode for discharge lamp, it is characterized in that forming by tungsten bar or thorium tungsten bar (2) and niobium bar (4), the head of its tungsten bar or thorium tungsten bar (2) is wound with tungsten filament or thoriatde-tungsten wire spiral coil or thoriatde-tungsten wire spiral coil (1), and the length that tungsten bar or thorium tungsten bar stretch out spiral coil is between the 0.0mm-3.0mm; The middle part of tungsten bar or thorium tungsten bar (2) is wound with molybdenum filament spiral coil (3).
2, ceramic metal halogen lamp pole according to claim 1 is characterized in that electrode body is directly finished with the mode of laser spot welding with niobium bar (4) two parts by tungsten bar or thorium tungsten bar (2) to be connected.
3, ceramic metal halogen lamp pole according to claim 1, it is characterized in that being wound in the described tungsten bar or the molybdenum filament spiral coil external diameter at thorium tungsten bar (2) middle part and the spacing between the ceramic gold-halogen lamp tail pipe internal diameter is 0.01-0.10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200365195U CN201274279Y (en) | 2008-06-11 | 2008-06-11 | Ceramic metallic halogen lamp electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200365195U CN201274279Y (en) | 2008-06-11 | 2008-06-11 | Ceramic metallic halogen lamp electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201274279Y true CN201274279Y (en) | 2009-07-15 |
Family
ID=40884621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200365195U Expired - Fee Related CN201274279Y (en) | 2008-06-11 | 2008-06-11 | Ceramic metallic halogen lamp electrode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201274279Y (en) |
Cited By (2)
| 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 |
| CN104867798A (en) * | 2014-02-25 | 2015-08-26 | 上海亚尔光源有限公司 | Method for manufacturing electrode used by metal halide lamp |
-
2008
- 2008-06-11 CN CNU2008200365195U patent/CN201274279Y/en not_active Expired - Fee Related
Cited By (2)
| 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 |
| CN104867798A (en) * | 2014-02-25 | 2015-08-26 | 上海亚尔光源有限公司 | Method for manufacturing electrode used by metal halide lamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090715 Termination date: 20100611 |