CN202058698U - Electric arc tube for ceramic metal halide lamp - Google Patents
Electric arc tube for ceramic metal halide lamp Download PDFInfo
- Publication number
- CN202058698U CN202058698U CN2011202052318U CN201120205231U CN202058698U CN 202058698 U CN202058698 U CN 202058698U CN 2011202052318 U CN2011202052318 U CN 2011202052318U CN 201120205231 U CN201120205231 U CN 201120205231U CN 202058698 U CN202058698 U CN 202058698U
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- China
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- ceramic
- tail pipe
- straight
- arc tube
- metal halide
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Abstract
The utility model discloses an electric arc tube for a ceramic metal halide lamp, comprising a semi-transparent aluminium oxide ceramic discharge chamber and a pair of electrodes; the semi-transparent aluminium oxide ceramic discharge chamber consists of a straight pipe type ceramic body and a ceramic plug; the straight pipe part of the ceramic body and the tail pipe of the ceramic body are connected with each other by arcs in a transitional way; the ceramic plug is connected with a straight tail pipe; the sealing tail pipe connected with the ceramic plug has greater internal diameter than the sealing tail pipe connected with the straight pipe type ceramic body; the geometrical dimension of the insertion electrode of the sealing tail pipe is greater; the pair of electrodes leads is respectively led out by the conductive leading wires and is connected with each other in an air-tight sealing way. The electric arc tube has the advantages that the light maintainability is better and the light efficiency and luminescent lamination phenomenon are improved obviously.
Description
Technical field
The utility model relates to a kind of ceramic metal halide lamp arc tube, the better ceramic metal halide lamp arc tube of particularly a kind of smooth maintenance.
Background technology
Existing ceramic metal halide lamp arc tube all adopts the afterbody connected structure of symmetry and the elongated tail pipe of sealing-in of symmetry at its two ends.Vertical or press under most of use occasions of certain angle inclination burning-point,, thereby limited the luminous efficiency of lamp because the thermal convection effect makes the end above being positioned at have higher Temperature Distribution than an end of below; Have under the situation of big ratio in electric arc tube arc length and discharge tube internal diameter, it is obvious that luminous lamination also becomes.Patent CN101859685A and CN201629296U described have asymmetrical tail structure and symmetry sealing-in with the ceramic metal halide lamp arc tube structure of elongated tail pipe, make the light efficiency of lamp and luminous lamination obtain tangible improvement.But the thermal convection effect also makes the electrode district temperature that is positioned at the top higher, thereby the electrode that is in the top more is easy to generate the evaporation of electrode material as anode the time, and the electric arc tube inwall that causes blackout makes the light maintenance variation of lamp.Its a pair of electrode has the electric arc tube structure of essentially identical working temperature when adopting the electric arc tube burning-point when the positive-negative half-cycle of power supply, can obviously reduce the light decay of lamp, thereby improves the useful life of lamp.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of ceramic metal halide lamp arc tube, and the light maintenance is better, light efficiency and luminous lamination be improved significantly.
The utility model technical scheme that adopts of dealing with problems is: a kind of ceramic metal halide lamp arc tube, comprise translucent alumina ceramics discharge cavity and pair of electrodes, described translucent alumina ceramics discharge cavity is made up of straight pipe type ceramic body and ceramic plug, the straight tube of described ceramic body partly with between its tail pipe adopts arc transition to be connected, described ceramic plug is connected with straight type tail pipe, the described sealing-in that is connected with ceramic plug has than the sealing-in that is connected with the straight pipe type ceramic body with the bigger internal diameter of tail pipe with tail pipe, its physical dimension of inserting electrode is also bigger, described this drawn by conductive lead wire respectively electrode, and hermetic seal.
The internal diameter of the straight type tail pipe that is connected with ceramic plug described in the utility model is slightly larger than the internal diameter of the tail pipe of straight pipe type ceramic body, and the straight type tail pipe that the diameter of described pair of electrodes is connected with ceramic plug respectively and the internal diameter of straight pipe type ceramic body tail pipe are complementary.
The utility model is applicable to the manufacturing of the various power ceramic metal helide lamps of 20W～2000W, but the two ends tail pipe internal diameter for the various power ceramic metal helide lamps of 20W～2000W is all identical, be 1.75 ± 0.05mm with the incorporate tail pipe internal diameter of translucent alumina ceramics discharge cavity promptly, the straight type tail pipe internal diameter that is connected with ceramic plug is 1.95 ± 0.05mm.The geometric parameter of translucent alumina ceramics discharge cavity of the present invention is corresponding with the power of lamp, is filled with in the chamber to start gas, mercury and as the metal halide more than one or more of luminescent substance.
The beneficial effects of the utility model are: an end of translucent alumina ceramics discharge cavity is set to be connected the circular-arc of normal inner diameter tail pipe, the other end is set to be connected the ceramic plug that has than the large diameter tail pipe, and an end that will the utlity model has ceramic plug is placed on the top of working position, so when reducing two ends tube wall temperature difference, has larger-diameter upper end electrode because of the bigger and difficult evaporation of thermal capacity, both improved the sustainment rate of light output, reach the luminous lamination of the described minimizing of above-mentioned patent again, improved the effect of light efficiency and color rendering index.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the structural representation of the utility model straight pipe type ceramic body part.
Fig. 3 is the structural representation of the utility model ceramic plug.
Below in conjunction with accompanying drawing the utility model is described further.
Embodiment
In conjunction with Fig. 1, Fig. 2, shown in Figure 3, a kind of 150W ceramic metal halide lamp arc tube, comprise translucent alumina ceramics discharge cavity and pair of electrodes, this translucent alumina ceramics discharge cavity is formed by straight pipe type ceramic body 1 and ceramic plug 2 sintering, its intracavity diameter is 5.5 ± 0.1mm, wall thickness is 0.75 ± 0.05mm, and the thickness of ceramic plug 2 is 2.7 ± 0.1mm; The straight tube of ceramic body 1 partly with between its tail pipe 3 adopts arc transition to be connected, and the radius of two circular arc is respectively 3.7mm and 1.5mm; The external diameter of tail pipe 3 is 2.5 ± 0.05mm, wall thickness 0.75 ± 0.05mm, and length is 15 ± 0.05mm; Ceramic plug 2 is connected with straight type tail pipe 5, the external diameter of straight type tail pipe 5 is 2.7 ± 0.05mm, wall thickness 0.75 ± 0.05mm, length is 15 ± 0.05mm, promptly the internal diameter of this straight type tail pipe 5 is slightly larger than the internal diameter of tail pipe 3, the tail pipe that pair of electrodes is stretched into two ends respectively is to the ceramic discharge chamber, the maximum outside diameter of two electrodes and electrode tip diameter all differ 0.2mm, this is complementary with the internal diameter of straight type tail pipe 5 and tail pipe 3 respectively to the external diameter of electrode, this is drawn by conductive lead wire 6 respectively electrode, and adopts glass solder 7 hermetic seals.In the ceramic discharge chamber, fill the halide 13 ± 0.5mg of Dy, Na, Tm, Pr and Cs etc. and the liquid mercury and the mixing of a small amount of adjustable pipe pressure and start gas.After tested, the colour temperature of this lamp is 2800 ± 100K, and color rendering index is 71, and light efficiency is 116lm/w, and the light sustainment rate under 2000 hours brings up to present 94% from 80% of original structure.
Claims (2)
1. ceramic metal halide lamp arc tube, comprise translucent alumina ceramics discharge cavity and pair of electrodes, described translucent alumina ceramics discharge cavity is made up of straight pipe type ceramic body (1) and ceramic plug (2), the straight tube of described ceramic body (1) partly with between its tail pipe (3) adopts arc transition to be connected, described ceramic plug (2) is connected with straight type tail pipe (5), it is characterized in that: the described sealing-in that is connected with ceramic plug (2) has than the sealing-in that is connected with straight pipe type ceramic body (1) the bigger internal diameter of tail pipe (3) with tail pipe (5), its physical dimension of inserting electrode is also bigger, described this drawn by conductive lead wire (6) respectively electrode, and hermetic seal.
2. ceramic metal halide lamp arc tube as claimed in claim 1 is characterized in that: the geometric parameter of described translucent alumina ceramics discharge cavity and electrode is corresponding with the power of lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202052318U CN202058698U (en) | 2011-06-17 | 2011-06-17 | Electric arc tube for ceramic metal halide lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202052318U CN202058698U (en) | 2011-06-17 | 2011-06-17 | Electric arc tube for ceramic metal halide lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202058698U true CN202058698U (en) | 2011-11-30 |
Family
ID=45018664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202052318U Expired - Lifetime CN202058698U (en) | 2011-06-17 | 2011-06-17 | Electric arc tube for ceramic metal halide lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202058698U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102280353A (en) * | 2011-06-17 | 2011-12-14 | 海宁新光阳光电有限公司 | Arc tube of ceramic metal halide lamp |
-
2011
- 2011-06-17 CN CN2011202052318U patent/CN202058698U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102280353A (en) * | 2011-06-17 | 2011-12-14 | 海宁新光阳光电有限公司 | Arc tube of ceramic metal halide lamp |
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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: Haining City, Huang Wan Zhen Zha Kou Cun Jiaxing City, Zhejiang province 314415 Patentee after: ZHEJIANG XINGUANGYANG LIGHTING CO., LTD. Address before: Haining City, Huang Wan Zhen Zha Kou Cun Jiaxing City, Zhejiang province 314415 Patentee before: Haining Xinguangyang Opto Electronics Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20111130 |
|
| CX01 | Expiry of patent term |