CN201332081Y - Ceramic metal halide lamp as well as electrode and electric arc tube thereof - Google Patents
Ceramic metal halide lamp as well as electrode and electric arc tube thereof Download PDFInfo
- Publication number
- CN201332081Y CN201332081Y CNU200820171303XU CN200820171303U CN201332081Y CN 201332081 Y CN201332081 Y CN 201332081Y CN U200820171303X U CNU200820171303X U CN U200820171303XU CN 200820171303 U CN200820171303 U CN 200820171303U CN 201332081 Y CN201332081 Y CN 201332081Y
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- ceramic
- electrode
- rod
- arc tube
- ceramic metal
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Abstract
The utility model discloses a ceramic metal halide lamp as well as an electrode and an electric arc tube thereof. An electrode component comprises a metal ceramic rod, wherein one end of the metal ceramic rod is connected with a tungsten electrode rod, and the other end of the metal ceramic rod is connected with a niobium rod used for feeding; the metal ceramic rod, the tungsten electrode rod and the niobium rod are positioned on the same axial line; a tungsten ring is arranged at the end part of the tungsten electrode rod; at least one electrode component in the electric arc tube is the electrode component of the ceramic metal halide lamp; and the ceramic metal halide lamp comprises the electric arc tube. As the electrode component adopts a novel material, the seal joint of the electrode component and a tail tube of a ceramic discharge cavity has little possibility of corrosion and bursts, thereby prolonging the service life of the lamp.
Description
Technical field
The utility model relates to a kind of ceramic metal helide lamp and manufacture method thereof, particularly a kind of ceramic metal helide lamp and electrode and electric arc tube.
Background technology
Eighties of last century the mid-90, first ceramic metal helide lamp that adopts tungsten--molybdenum--niobium electrode structure realized commercial applications, and its photoelectric properties have had significant lifting for quartz metal halide lamp.Since then, for the length that shortens tungsten-molybdenum-niobium electrode to be reduced to the size of lamp, simultaneously also in order to increase the reliability in vacuum seal district under the high temperature, and the operability of electrode manufacturing process, seeking a kind of novel electrode material becomes one of key that ceramic metal helide lamp produces.And electrode assemblie at present commonly used--is wound with the molybdenum rod or the niobium bar of molybdenum circle--by the niobium bar and is wound with the tungsten bar of molybdenum circle and adds the tungsten electrode head again, and coaxial welding forms.During the routine sealing-in, glass solder at first should cover enough electrode district length and prevent the corrosion of halide to Metallic rod, simultaneously again can not topped too much molybdenum circle partly to prevent the explosion of this district's earthenware, this makes the length in vacuum seal district all must remain in each lamp in the very little scope of error, otherwise the burning-point reliability of ceramic metal helide lamp just descends greatly, causes the explosion phenomenon of ceramic tail pipe easily.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of ceramic metal helide lamp and electrode and electric arc tube, in electrode assemblie, adopted new material, thereby be difficult for to produce corrosion and explosion phenomenon in sealing-in place with ceramic discharge chamber tail pipe, prolonged the useful life of one-tenth lamp.
The utility model technical scheme that adopts of dealing with problems is:
A kind of ceramic metal helide lamp special electrode component comprises cermet rod, and an end of described cermet rod is the tungsten electrode bar, and the other end is a feed niobium bar, and the three is on the same axis; The end of described tungsten electrode bar is the tungsten circle.
As further improvement, the internal diameter of the diameter of described niobium bar used ceramic discharge chamber tail pipe when making ceramic metal halide lamp arc tube and less than its external diameter.
A kind of ceramic metal halide lamp arc tube, comprise the ceramic discharge chamber, in the tail pipe of two ends, described ceramic discharge chamber an electrode assemblie is axisymmetricly arranged respectively, be filled with starting gas, mercury and two or more at least metal halides in the described ceramic discharge chamber, having an electrode assemblie in the described electrode assemblie at least is aforesaid ceramic metal helide lamp special electrode component; Described niobium bar is in the outside of described ceramic discharge chamber tail pipe.
A kind of ceramic metal helide lamp comprises aforesaid ceramic metal halide lamp arc tube.
Cermet rod in the utility model in the special electrode component both can directly be connected with the tungsten electrode bar, also can connect a molybdenum rod or tungsten bar again between cermet rod and tungsten electrode bar, also can be provided with the molybdenum circle on molybdenum rod that connects or tungsten bar.
The utility model is applicable to the manufacturing of the various power ceramic metal helide lamps of 10W～1000W; Wherein glass solder is by Al
2O
3, Dy
2O
3, SiO
2, Ho
2O
3Deng composition, the component proportioning between them is by the material character decision in used sealing-in district; The metal halide that is filled in the ceramic discharge chamber can be at least two kinds in the halide of Na, Tl, In, Dy, Ho, Tm, Gd.
The beneficial effects of the utility model are: added cermet rod in electrode assemblie, this material has the characteristic of anti-halide corrosion, can at high temperature do not corroded by metal halide, promptly be difficult for producing corrosion and explosion phenomenon, prolonged the useful life that becomes lamp in sealing-in place with ceramic discharge chamber tail pipe.
Description of drawings
Fig. 1 is the structural representation of a kind of execution mode of special electrode component in the utility model.
Fig. 2 is the structural representation of a kind of execution mode of electric arc tube in the utility model.
Below in conjunction with accompanying drawing the utility model is described further:
Embodiment
Embodiment 1: as shown in Figure 1, structural representation for special electrode component, comprise tungsten electrode bar 1, tungsten circle 2, cermet rod 3, niobium bar 4, the material of cermet rod 3 is made up of aluminium oxide and molybdenum, wherein the internal diameter of the slightly larger in diameter of niobium bar 4 used ceramic discharge chamber tail pipe when making ceramic metal halide lamp arc tube but be slightly less than the external diameter of tail pipe.Tungsten circle 2, tungsten electrode bar 1, cermet rod 3 and niobium bar 4 are formed the entire electrode structure after the coaxial welding respectively successively.
Embodiment 1: as shown in Figure 2, the structural representation for a kind of execution mode of electric arc tube comprises a pair of above-mentioned special electrode component, semi-transparent polycrystal aluminium oxide ceramic discharge chamber 5, and the tail pipe 6 at this ceramic discharge chamber 5 and two ends thereof is integrated.This places the tail pipe 6 at transparent ceramic discharge cavity 5 two ends axisymmetricly to special electrode component, interval certain clearance between niobium bar 4 and the tail pipe 6, again glass solder ring 8 is placed on the niobium bar 4, the internal diameter of glass solder ring 8 is greater than the external diameter 0.2mm of niobium bar 4, the annular gap that promptly between glass solder ring 8 and niobium bar 4, has had 0.2mm, so that the glass solder 7 of fusion is penetrated into the cermet rod position by this annular gap, glass solder 7 covers most cermet rod 3 and gets final product, and the part that niobium bar 4 exposes tail pipe 6 connects as feed.In ceramic discharge chamber 5, fill the halide of starting gas, mercury and Na, Tl, Dy, Gd.
Claims (4)
1. a ceramic metal helide lamp special electrode component is characterized in that, comprises cermet rod (3), and an end of described cermet rod (3) is tungsten electrode bar (1), and the other end is a feed niobium bar (4), and the three is on the same axis; The end of described tungsten electrode bar (1) is tungsten circle (2).
2. ceramic metal helide lamp special electrode component according to claim 1 is characterized in that, the internal diameter of the diameter of described niobium bar (4) used ceramic discharge chamber tail pipe (6) when making ceramic metal halide lamp arc tube and less than its external diameter.
3. ceramic metal halide lamp arc tube, comprise ceramic discharge chamber (5), an electrode assemblie is axisymmetricly respectively arranged in described ceramic discharge chamber (5) the two ends tail pipes (6), be filled with starting gas, mercury and two or more at least metal halides in the described ceramic discharge chamber (5), it is characterized in that having an electrode assemblie in the described electrode assemblie at least is ceramic metal helide lamp special electrode component according to claim 1 and 2; Described niobium bar (4) is in the outside of described ceramic discharge chamber tail pipe (6).
4. a ceramic metal helide lamp is characterized in that, comprises ceramic metal halide lamp arc tube as claimed in claim 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820171303XU CN201332081Y (en) | 2008-12-17 | 2008-12-17 | Ceramic metal halide lamp as well as electrode and electric arc tube thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820171303XU CN201332081Y (en) | 2008-12-17 | 2008-12-17 | Ceramic metal halide lamp as well as electrode and electric arc tube thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201332081Y true CN201332081Y (en) | 2009-10-21 |
Family
ID=41225463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820171303XU Expired - Lifetime CN201332081Y (en) | 2008-12-17 | 2008-12-17 | Ceramic metal halide lamp as well as electrode and electric arc tube thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201332081Y (en) |
-
2008
- 2008-12-17 CN CNU200820171303XU patent/CN201332081Y/en not_active Expired - Lifetime
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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: ZHEJIANG XINGUANGYANG LIGHTING CO., LTD. Free format text: FORMER NAME: HAINING XINGUANGYANG OPTO ELECTRONICS CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Huang Wan Zhen Zha Kou Cun Haining City, Zhejiang province 314415 Patentee after: ZHEJIANG XINGUANGYANG LIGHTING CO., LTD. Address before: Huang Wan Zhen Zha Kou Cun Haining City, Zhejiang province 314415 Patentee before: Haining Xinguangyang Opto Electronics Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20091021 |
|
| CX01 | Expiry of patent term |