CN203733759U - Metal halide lamp electrode - Google Patents
Metal halide lamp electrode Download PDFInfo
- Publication number
- CN203733759U CN203733759U CN201420081336.0U CN201420081336U CN203733759U CN 203733759 U CN203733759 U CN 203733759U CN 201420081336 U CN201420081336 U CN 201420081336U CN 203733759 U CN203733759 U CN 203733759U
- Authority
- CN
- China
- Prior art keywords
- plug
- spring
- tungsten
- metal halide
- halide lamp
- 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.)
- Expired - Lifetime
Links
- 229910001507 metal halide Inorganic materials 0.000 title claims abstract description 20
- 150000005309 metal halides Chemical class 0.000 title claims abstract description 20
- 230000007704 transition Effects 0.000 claims abstract description 19
- QGLKJKCYBOYXKC-UHFFFAOYSA-N nonaoxidotritungsten Chemical compound O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 QGLKJKCYBOYXKC-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910001930 tungsten oxide Inorganic materials 0.000 claims abstract description 17
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical group [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 10
- 239000010937 tungsten Substances 0.000 claims abstract description 10
- 238000002048 anodisation reaction Methods 0.000 claims abstract description 7
- WLTSUBTXQJEURO-UHFFFAOYSA-N thorium tungsten Chemical compound [W].[Th] WLTSUBTXQJEURO-UHFFFAOYSA-N 0.000 claims description 7
- FFRBMBIXVSCUFS-UHFFFAOYSA-N 2,4-dinitro-1-naphthol Chemical compound C1=CC=C2C(O)=C([N+]([O-])=O)C=C([N+]([O-])=O)C2=C1 FFRBMBIXVSCUFS-UHFFFAOYSA-N 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 238000009713 electroplating Methods 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 2
- 239000010453 quartz Substances 0.000 abstract description 2
- 238000010891 electric arc Methods 0.000 description 8
- 125000004429 atom Chemical group 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 125000005843 halogen group Chemical group 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 239000003708 ampul Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Discharge Lamp (AREA)
Abstract
The utility model relates to a metal halide lamp electrode which is composed of a core rod and a spring sleeving the front end of the core rod. The core rod is a tungsten core rod or a thoriated tungsten core rod. The spring is a tungsten spring or a thoriated tungsten spring. The tail end of the core rod is electroplated to form a tungsten oxide transition layer. Compared with the prior art, the technical scheme of the utility model can be used on electrodes of different specification, so the advantage of good applicability can be realized, and additionally, a tungsten oxide layer is formed through the anodization process to make the electrode core rod and a quartz tube sealed and connected better, so the air tightness can be improved, so that the air leakage or burst phenomenon can be reduced, and the advantage of good reliability can be realized.
Description
Technical field
The utility model relates to a kind of electrode, especially relates to a kind of metal halide lamp electrode.
Background technology
Metal halide lamp is a kind of high-intensity gas discharge lamp, and main luminescent material has mercury and metal halide.Metal halide is evaporation in a large number under tube wall working temperature, to arc center's diffusion, is decomposed into metallic atom and halogen atom in arc center high-temperature region, and metallic atom participates in discharge generation thermal excitation, thermal ionization, and the spectrum distributing to external radiation different-energy.Due to arc center's metallic atom and halogen atom concentration higher, they to tube wall diffusion, are compounded to form again metal halide molecule, iterative cycles again in low-temperature space.Because its color rendering is high, the life-span is long, be used for road, stadium, airport, gas station, exterior wall illumination.
In metal halide lamp, critical piece is electric arc tube.After electrode and molybdenum sheet welding, the both sides with air tight manner clamp at electric arc tube.Current electrode exists defect: electric arc pipe shell is quartz glass, electrode plug is mainly tungsten or thorium tungsten, and be by direct press seal after glass melting when quartz glass and the sealing-in of electrode plug by high temperature, but the thermal expansion coefficient difference of electrode plug and glass is large, after clamp, easily cause the not firm gas leakage of quick-fried electric arc tube or press seal, cause waste product to increase, the reliability decrease of electric arc tube.The thermal coefficient of expansion of tungsten is 4.6 × 10
-6(20～590 DEG C), the thermal coefficient of expansion of quartz glass is 5.4*10
-7(0～1000 DEG C).
Utility model content
The purpose of this utility model is exactly to provide one to make plug and quartz glass press seal tightr in order to overcome the defect that above-mentioned prior art exists, thus the metal halide lamp electrode of guarantee electric arc tube quality.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of metal halide lamp electrode, is made up of plug and the spring that is set in plug front end, and described plug is tungsten plug or thorium tungsten plug, and described spring is tungsten spring or thorium tungsten spring, and the tail end of described plug is through electroplating formation tungsten oxide transition zone.
As preferred embodiment, described tungsten oxide transition zone is shallow anodized golden yellow WO
3transition zone.
As preferred embodiment, described tungsten oxide transition zone is dark anodized blue brown W
2o
5transition zone.
As preferred embodiment, described tungsten oxide transition zone is the compound transition zone that shallow anodization gradually changes to dark anodization.
As preferred embodiment, the diameter of described spring is 0.15
-1.0mm.
As preferred embodiment, the diameter of described plug is 0.3-2.5mm.
As preferred embodiment, the length of described plug is 5-20mm.
As preferred embodiment, the length of described tungsten oxide transition zone is the 1/2-3/4 of plug afterbody to distance between spring afterbody.
Compared with prior art, the utlity model has following advantage:
Applicability is strong: can on the electrode of different size, use.
Reliability is strong: form tungsten oxide layer by anodic process, make electrode plug and quartz ampoule obtain better sealing-in, air-tightness improves, thereby reduces the phenomenon of gas leakage or explosion.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure, 1 is that plug, 2 is that spring, 3 is tungsten oxide transition zone.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
Embodiment
A kind of metal halide lamp electrode, its structure as shown in Figure 1, is mainly made up of plug 1 and the spring 2 that is set in plug 1 front end, the plug 1 adopting is tungsten plug or thorium tungsten plug, and diameter is 0.3-2.5mm, and length is machined to 5-20mm, in the present embodiment, plug 1 diameter adopting is 2mm, and length is 15mm, and spring 2 is tungsten spring or thorium tungsten spring, diameter is 0.15-1.0mm, in the present embodiment, the diameter of spring 2 is 0.8mm, is closely set in the front end of plug 1.Tail end at plug 1 forms tungsten oxide transition zone 3 through electroplating, and can be shallow anodized golden yellow WO
3transition zone can be also dark anodized blue brown W
2o
5transition zone, or the compound transition zone gradually changing to dark anodization for shallow anodization, the length of tungsten oxide transition zone 3 is that the afterbody of plug 1 is to the 1/2-3/4 of distance between the afterbody of spring 2.In the utility model, the top end face of plug 1 contacts with electric arc, and spring 2 makes electrode maintain normal working temperature, transition zone when tungsten oxide transition zone 3 is follow-up sealing-in, the high-quality of guarantee electric arc tube.
Claims (8)
1. a metal halide lamp electrode, is made up of plug and the spring that is set in plug front end, and described plug is tungsten plug or thorium tungsten plug, and described spring is tungsten spring or thorium tungsten spring,
It is characterized in that, the tail end of described plug forms tungsten oxide transition zone through electroplating.
2. a kind of metal halide lamp electrode according to claim 1, is characterized in that, described tungsten oxide transition zone is shallow anodized golden yellow WO
3transition zone.
3. a kind of metal halide lamp electrode according to claim 1, is characterized in that, described tungsten oxide transition zone is dark anodized blue brown W
2o
5transition zone.
4. a kind of metal halide lamp electrode according to claim 1, is characterized in that, described tungsten oxide transition zone is the compound transition zone that shallow anodization gradually changes to dark anodization.
5. according to a kind of metal halide lamp electrode described in any one in claim 1-4, it is characterized in that, the diameter of described spring is 0.15-1.0mm.
6. according to a kind of metal halide lamp electrode described in any one in claim 1-4, it is characterized in that, the diameter of described plug is 0.3-2.5mm.
7. according to a kind of metal halide lamp electrode described in any one in claim 1-4, it is characterized in that, the length of described plug is 5-20mm.
8. according to a kind of metal halide lamp electrode described in any one in claim 1-4, it is characterized in that, the length of described tungsten oxide transition zone is the 1/2-3/4 of plug afterbody to distance between spring afterbody.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420081336.0U CN203733759U (en) | 2014-02-25 | 2014-02-25 | Metal halide lamp electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420081336.0U CN203733759U (en) | 2014-02-25 | 2014-02-25 | Metal halide lamp electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203733759U true CN203733759U (en) | 2014-07-23 |
Family
ID=51203810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420081336.0U Expired - Lifetime CN203733759U (en) | 2014-02-25 | 2014-02-25 | Metal halide lamp electrode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203733759U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109243940A (en) * | 2018-09-28 | 2019-01-18 | 贵州宇光鸿宇电气照明科技有限公司 | A kind of electrode sealing location structure for ceramic gold-halogen lamp |
-
2014
- 2014-02-25 CN CN201420081336.0U patent/CN203733759U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109243940A (en) * | 2018-09-28 | 2019-01-18 | 贵州宇光鸿宇电气照明科技有限公司 | A kind of electrode sealing location structure for ceramic gold-halogen lamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140723 |