CN201315305Y - Special electrode subassembly and electric arc tube for ceramic metal halide lamp - Google Patents
Special electrode subassembly and electric arc tube for ceramic metal halide lamp Download PDFInfo
- Publication number
- CN201315305Y CN201315305Y CNU2008201713044U CN200820171304U CN201315305Y CN 201315305 Y CN201315305 Y CN 201315305Y CN U2008201713044 U CNU2008201713044 U CN U2008201713044U CN 200820171304 U CN200820171304 U CN 200820171304U CN 201315305 Y CN201315305 Y CN 201315305Y
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- Prior art keywords
- tungsten
- ceramic
- bar
- electrode
- rod
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Abstract
The utility model discloses a special electrode subassembly and an electric arc tube for a ceramic metal halide lamp. The special electrode subassembly comprises a metal ceramic rod; one end of the metal ceramic rod is connected with a tungsten electrode bar, and the other end is connected with a feeding metal bar; the metal ceramic rod, the tungsten electrode bar and the metal bar are coaxial; and a tungsten ring is arranged at the end of the tungsten electrode bar. At least one of the electrode subassemblies in the electric arc tube adopts the above special electrode subassembly. The ceramic metal halide lamp comprises the above the electric arc tube. Adopting new material, the special electrode subassembly can be reliably sealed and connected with a ceramic discharge cavity tail tube, thus reducing the burst at the sealing joint of the ceramic tail tube and prolonging the service life of the finished lamp.
Description
Technical field
The utility model relates to a kind of ceramic metal helide lamp, particularly a kind of ceramic metal helide lamp special electrode component and electric arc tube.
Background technology
At present, electrode assemblie commonly used by the niobium bar--be wound with the molybdenum rod of molybdenum circle or niobium bar--the tungsten bar that is wound with the molybdenum circle adds the tungsten electrode head again, 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.Therefore, 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 has become one of key that ceramic metal helide lamp produces.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of ceramic metal helide lamp special electrode component and electric arc tube, in special electrode component, adopted new material, thereby with the good reliability of ceramic discharge chamber tail pipe sealing-in, reduce the explosion phenomenon of ceramic tail pipe sealing-in place, prolonged the useful life that becomes 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 connected with the tungsten electrode bar, and the other end is connected with the Metallic rod that is used as feed, and the three is on the same axis; The end of described tungsten electrode bar is the tungsten circle.
As further improvement, also comprise molybdenum rod or tungsten bar between described cermet rod and the tungsten electrode bar, and described molybdenum rod or tungsten bar and cermet rod, tungsten electrode bar and be on the same axis as the Metallic rod of feed.
As further improvement, the outside of described molybdenum rod or tungsten bar is wound with the molybdenum circle.
A kind of ceramic metal halide lamp arc tube, comprise the transparent ceramic discharge cavity, in the tail pipe of described transparent ceramic discharge cavity two ends an electrode assemblie is axisymmetricly arranged respectively, be filled with starting gas, mercury and two or more at least metal halides in the described transparent ceramic discharge cavity, having an electrode assemblie in the described electrode assemblie at least is aforesaid ceramic metal helide lamp special electrode component.
A kind of ceramic metal helide lamp comprises aforesaid ceramic metal halide lamp arc tube.
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, so do not need the glass solder sealing-in section length of fixing, glass solder only need cover the part of cermet rod in the electrode assemblie or all, needn't cover the part of molybdenum circle again, the explosion phenomenon of ceramic tail pipe sealing-in place promptly just can not take place when the ceramic metal helide lamp burning-point, has prolonged the useful life that becomes lamp.
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 another execution mode of special electrode component in the utility model.
Fig. 3 is the structural representation of the another kind of execution mode of special electrode component in the utility model.
Fig. 4 is the structural representation of a kind of execution mode of electric arc tube in the utility model.
Fig. 5 is another execution mode structural representation 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, the structural representation for a kind of execution mode of special electrode component comprises tungsten electrode bar 1, tungsten circle 2, cermet rod 3, Metallic rod 6, and the material of cermet rod 3 is made up of aluminium oxide and molybdenum.Tungsten circle 2, tungsten electrode bar 1, cermet rod 3 and Metallic rod 6 are formed the entire electrode structure after the coaxial welding respectively successively.
Embodiment 2: as shown in Figure 2, the structural representation for another execution mode of special electrode component comprises tungsten electrode bar 1, tungsten circle 2, cermet rod 3, tungsten bar 4, Metallic rod 6, and the material of cermet rod 3 is made up of aluminium oxide and molybdenum.Tungsten circle 2, tungsten electrode bar 1, tungsten bar 4, cermet rod 3 and Metallic rod 6 are formed the entire electrode structure after the coaxial welding respectively successively.
Embodiment 3: as shown in Figure 3, the structural representation for the another kind of execution mode of special electrode component comprises tungsten electrode bar 1, tungsten circle 2, cermet rod 3, tungsten bar 4, molybdenum circle 5, Metallic rod 6, and the material of cermet rod 3 is made up of aluminium oxide and molybdenum.Molybdenum circle 5 is formed the entire electrode structure after the coaxial welding respectively successively with tungsten circle 2, tungsten electrode bar 1, the tungsten bar 4 that is provided with molybdenum circle 5, cermet rod 3 and Metallic rod 6 on tungsten bar 4.
Embodiment 4: as shown in Figure 4, be a kind of structural representation of executing routine mode of electric arc tube reality, comprise special electrode component, semi-transparent polycrystal aluminium oxide ceramic discharge chamber 8 among a pair of above-mentioned Fig. 1, the tail pipe 9 at this ceramic discharge chamber 8 and two ends thereof is integrated.This is packaged in the tail pipe 9 at 8 two ends, ceramic discharge chamber axisymmetricly to special electrode component, cermet rod 3 in this special electrode component stretches into tail pipe 9 parts slightly, the glass solder 7 that is used for sealing-in has covered most cermet rod 3, and the part that Metallic rod 6 is exposed tail pipe 9 connects as feed.In ceramic discharge chamber 9, fill the halide of starting gas, mercury and Na, Tl, Dy, Gd.
Embodiment 1: as shown in Figure 5, for another of electric arc tube reality executed the structural representation of routine mode, comprise the tail pipe 9 at special electrode component, semi-transparent polycrystal aluminium oxide ceramic discharge chamber 8 and two ends among a pair of above-mentioned Fig. 2, the tail pipe 9 at this ceramic discharge chamber 8 and two ends is integrated.This is packaged in the tail pipe 9 in ceramic discharge chamber 8 axisymmetricly to special electrode component, cermet rod 3 in this special electrode component is concordant with the tail end of tail pipe 9, the glass solder 7 that is used for sealing-in has covered whole cermet rod 3, whole Metallic rod 6 is exposed the outside of tail pipe 9 to connect as feed, fills the halide of starting gas, mercury and Na, Tl, Dy, Gd in ceramic discharge chamber 9.
Electric arc tube among the foregoing description 4 and the embodiment 5 respectively can with any one sealing-in that matches in above-mentioned three kinds of special electrode component.
Claims (5)
1. ceramic metal helide lamp special electrode component, it is characterized in that, comprise cermet rod (3), an end of described cermet rod (3) is connected with tungsten electrode bar (1), the other end is connected with the Metallic rod (6) that is used as feed, 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, it is characterized in that, also comprise molybdenum rod or tungsten bar (4) between described cermet rod (3) and the tungsten electrode bar (1), and described molybdenum rod or tungsten bar (4) and cermet rod (3), tungsten electrode bar (1) and be on the same axis as the Metallic rod (6) of feed.
3. ceramic metal helide lamp special electrode component according to claim 2 is characterized in that, the outside of described molybdenum rod or tungsten bar (4) is wound with molybdenum circle (5).
4. ceramic metal halide lamp arc tube, comprise ceramic discharge chamber (8), an electrode assemblie is axisymmetricly respectively arranged in described ceramic discharge chamber (8) the two ends tail pipes (9), be filled with starting gas, mercury and two or more at least metal halides in the described ceramic discharge chamber (8), it is characterized in that having an electrode assemblie in the described electrode assemblie at least is any described ceramic metal helide lamp special electrode component according to claim 1 to 3.
5. a ceramic metal helide lamp is characterized in that, comprises ceramic metal halide lamp arc tube as claimed in claim 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201713044U CN201315305Y (en) | 2008-12-17 | 2008-12-17 | Special electrode subassembly and electric arc tube for ceramic metal halide lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201713044U CN201315305Y (en) | 2008-12-17 | 2008-12-17 | Special electrode subassembly and electric arc tube for ceramic metal halide lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201315305Y true CN201315305Y (en) | 2009-09-23 |
Family
ID=41127104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201713044U Expired - Lifetime CN201315305Y (en) | 2008-12-17 | 2008-12-17 | Special electrode subassembly and electric arc tube for ceramic metal halide lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201315305Y (en) |
-
2008
- 2008-12-17 CN CNU2008201713044U patent/CN201315305Y/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: 20090923 |
|
| CX01 | Expiry of patent term |