CN203367229U - Special electrode subassembly for medium-and-high power cermethalide lamp - Google Patents
Special electrode subassembly for medium-and-high power cermethalide lamp Download PDFInfo
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- CN203367229U CN203367229U CN 201320447964 CN201320447964U CN203367229U CN 203367229 U CN203367229 U CN 203367229U CN 201320447964 CN201320447964 CN 201320447964 CN 201320447964 U CN201320447964 U CN 201320447964U CN 203367229 U CN203367229 U CN 203367229U
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- electrode
- molybdenum
- ceramic
- halide lamp
- ceramet
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Abstract
A special electrode subassembly for a medium-and-high power cermethalide lamp comprises an electrode fixed on one end of an electrode rod, an NbZr tube lead connected to the other end of the electrode rod, and a ceramic and metallic rod sleeve and a molybdenum clamp fixed on the other end of the electrode rod, wherein the ceramic and metallic rod sleeve is made of alumina ceramic with high purity, and the molybdenum clamp is tightly attached to one end face of the ceramic and metallic rod sleeve and fixed to the other end of the electrode rod. Since the ceramic and metallic rod sleeve is made of alumina ceramic with high purity instead of molybdenum spiral which is difficult to process, mass production is allowed and the size, dimension and gap are easy to control. The material is the same with that of an electric arc tube capillary, namely consistent swelling coefficient, and conductivity is relatively consistent with the conductivity of molybdenum, thereby completely preventing rapture of capillaries due to expansion of the capillaries and different swelling coefficients. Great loss due to scrape of electric arc tubes in advance and premature failure of cermet halide lamp and environmental pollution due to scrap can be reduced. The quality of the halide lamp is improved, and the service life of the metal halide lamp reaches 20000 hours.
Description
Technical field
The utility model relates to a kind of special electrode component, particularly a kind of suitable middle high-power ceramic metal halide lamp special electrode component of using on ceramic metal helide lamp.
Background technology
At present, the electrode of high-power ceramic metal halide lamp adopts the niobium silk more, the molybdenum spiral, electrode stem, electrode forms electrode assemblie, and in middle high-power ceramic metal halide lamp the capillary aperture at electric arc tube tail pipe place at 2～3 millimeters, electrode stem also needs outward to carry out coiling molybdenum spiral with the molybdenum filament of 0.4 or 0.9 millimeter, the larger coefficient of expansion of string diameter of coiling molybdenum spiral is also larger, the molybdenum spiral is more difficult with coordinating of capillary inner diameter, if the molybdenum screw diameter is larger, while inserting ceramet discharge cavity tail pipe capillary, only minim gap between the two, if clearance control is bad too little, the molybdenum spiral will be burst ceramet tail pipe capillary, cause that electric arc tube gas leakage blows, lost efficacy, if gap is too large, the metal halide steam can see through the sealing-in district that this gap is condensate in electrode, cause the gas leakage of sealing-in district, cause the variation of the decline of luminous efficiency and colour temperature and to the corrosion of sealing-in district material, all will directly affect the useful life of halide lamp.
Number of patent application 201110219135.3 " a kind of dedicated electrode component for ceramic metal halide lamp ", provide two different-diameters of a kind of use, different length cermet rod to be connected to replace the molybdenum spiral to use with the tungsten electrode bar, improve the special electrode component of the actual life of lamp, but its manufacture craft bothers.
Summary of the invention
Technical problem to be solved in the utility model is: a kind of middle high-power ceramic metal halide lamp special electrode component is provided, can control, guarantee the fit clearance between electrode assemblie and ceramet electric arc tube capilar bore, operating reliability is strong, avoid capillary sealing-in place to split and scrap, extended the useful life of lamp.
The technical scheme in the invention for solving the above technical problem is: middle high-power ceramic metal halide lamp special electrode component, comprise the nb-zr tube lead-in wire that the electrode that is fixed on electrode stem one end is connected with the electrode stem other end, also comprise and be fixed on ceramet bar cover and molybdenum folder on the electrode stem other end, described ceramet bar cover is become by the high-purity alpha-alumina ceramic making, described molybdenum clamps an end face that pastes ceramet bar cover, is fixed on the other end of electrode stem.
Compared with prior art, the utility model has the advantage of: because adopting the ceramet bar cover by high-purity alpha-alumina ceramic making one-tenth, for replacing originally being wrapped in electrode stem more unmanageable molybdenum spiral outward, ceramet bar cover can be mass, size, size, gap is easy to control, stable processing technology, and its material therefor is identical with the electric arc tube capillary material, be that the coefficient of expansion is consistent, its conductance is also relative consistent with the molybdenum conductance, therefore can be complete, thoroughly, avoid strengthening and causing capillary to split fried phenomenon because of the difference of the coefficient of expansion, greatly reduce and scrap in advance the heavy losses that cause because of electric arc tube, also reduce cermet halide lamp early failure simultaneously, scrap rear pollution on the environment, not only improve the quality of halide lamp but also extended useful life of Metal halogen lamp, can arrive 20000 hours useful life, improve the life-span more than one times.
The accompanying drawing explanation
Fig. 1, structural representation of the present utility model.
Fig. 2, the utility model are used state reference map (electric arc tube capillary Local map).
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Use high-purity a-Al
2o
3the polycrystal aluminium oxide fully mixes with nano Mo powder, add macromolecular material injection molded, and process and be made into the middle cover of the ceramet bar with through hole 4 through high-temperature vacuum, its outer surface coordinates with electric arc tube capillary 8 internal diameters, and the inner surface through hole coordinates with electrode stem 1.
In electrode stem 1 electrode insertion 2, and electrode welding is fixed on an end of electrode stem with spot welding, also has raised anchor point 3 on the outer surface of electrode stem 1, the end of electrode stem 1 is through ceramet bar cover 4, until an end face of ceramet bar cover is encountered anchor point 3, anchor point 3 makes an end face location of ceramet bar cover 4, molybdenum folder 5 is close in the other end of ceramet bar cover 4, the size of molybdenum folder 5 is less than the diameter of ceramet bar cover, molybdenum folder 5 use bonding machines are weldingly fixed on the other end of electrode stem 1, ceramet bar cover 4 is fixed on anchor point 3 and 5, molybdenum folder can not move, the end place of electrode stem 1 other end is welded with nb-zr tube lead-in wire 6, form special electrode component, as shown in Figure 1.
Electrode assemblie by above-mentioned special use, be arranged in the capillary 8 at electric arc tube discharge cavity two ends, and link into an integrated entity in the capillary mouth of pipe and press seal place with seal, sealing materials 7 press seals, its sealing-in scolder can soak not in cermet 1/3～1/2 scope capillaceous, niobium lead-in wire and halid chemical reaction have fully been isolated, air-tightness is good, as Fig. 2.
Described seal, sealing materials is the patent No. 201010039714.5 " Al
2o
3-Dy
2o
3-SiO
2ternary system rare earth seal, sealing materials " in scolder.
And then the interior use of the middle high-power ceramic metalized lamp that is arranged on 35～2000W (figure draws).
Claims (3)
1. high-power ceramic metal halide lamp special electrode component in a kind, comprise the nb-zr tube lead-in wire (6) that the electrode (2) that is fixed on electrode stem one end is connected with electrode stem (1) other end, characterized by further comprising and be fixed on ceramet bar cover (4) and molybdenum folder (5) on electrode stem (1) other end, described ceramet bar cover (4) is become by the high-purity alpha-alumina ceramic making, described molybdenum folder (5) is close to an end face of ceramet bar cover (4), is fixed on the other end of electrode stem (1).
2. middle high-power ceramic metal halide lamp special electrode component according to claim 1, is characterized in that also having raised anchor point (3) on the outer surface of described electrode stem (1), makes an end face location of ceramet bar cover (4).
3. middle high-power ceramic metal halide lamp special electrode component according to claim 1, is characterized in that the size of described molybdenum folder (5) is less than the diameter of ceramet bar cover (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320447964 CN203367229U (en) | 2013-07-26 | 2013-07-26 | Special electrode subassembly for medium-and-high power cermethalide lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320447964 CN203367229U (en) | 2013-07-26 | 2013-07-26 | Special electrode subassembly for medium-and-high power cermethalide lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203367229U true CN203367229U (en) | 2013-12-25 |
Family
ID=49814950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320447964 Expired - Lifetime CN203367229U (en) | 2013-07-26 | 2013-07-26 | Special electrode subassembly for medium-and-high power cermethalide lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203367229U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108461451A (en) * | 2018-03-14 | 2018-08-28 | 清华大学 | sealing structure and preparation method thereof |
-
2013
- 2013-07-26 CN CN 201320447964 patent/CN203367229U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108461451A (en) * | 2018-03-14 | 2018-08-28 | 清华大学 | sealing structure and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: NINGBO YAMAO OPTOELECTRONICS CO., LTD. Free format text: FORMER NAME: NINGBO YAMAO LIGHTING ELECTRIC APPLIANCES CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: ZTE road 315000 Zhejiang city of Ningbo province Fenghua Xikou No. 88 Patentee after: NINGBO YAMAO OPTOELECTRONICS Co.,Ltd. Address before: ZTE road 315502 Zhejiang city of Ningbo province Fenghua Xikou No. 88 Patentee before: Ningbo Yamao Lighting Electric Appliance Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131225 |