CN201532933U - Arc tube of ceramic metal halide lamp - Google Patents
Arc tube of ceramic metal halide lamp Download PDFInfo
- Publication number
- CN201532933U CN201532933U CN2009201907519U CN200920190751U CN201532933U CN 201532933 U CN201532933 U CN 201532933U CN 2009201907519 U CN2009201907519 U CN 2009201907519U CN 200920190751 U CN200920190751 U CN 200920190751U CN 201532933 U CN201532933 U CN 201532933U
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- CN
- China
- Prior art keywords
- metal halide
- discharge cavity
- discharge chamber
- ceramic
- arc tube
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Abstract
The utility model discloses an arc tube of a ceramic metal halide lamp, which comprises a semitransparent alumina discharge chamber and a pair of electrodes, wherein the discharge chamber is filled with start gas, mercury and metal halide; the semitransparent alumina discharge chamber comprises a cylindrical discharge chamber formed by two ceramic bodies which are provided with concave-convex structures respectively and matched with each other and slender type tail tubes at two ends; the two ceramic bodies which are provided with the concave-convex structures respectively and matched with each other are respectively in arc transition connection with the tail tubes at two ends; and the pair of electrodes respectively extends into the cylindrical discharge chamber from the tail tubes at two ends and are hermetically sealed. The utility model has the advantages of simple manufacture process, stable performance, high production efficiency and low cost.
Description
Technical field
The utility model relates to a kind of electric arc tube of illuminating industry, particularly a kind of ceramic metal halide lamp arc tube.
Background technology
At present, the preferred polycrystalline alumina ceramic cell-shell of illuminating industry material is compared with the quartz bulb shell that belongs to silicate material together, has better stability at elevated temperature, tangible chemical reaction at high temperature can not take place with metal halide in it, the ceramic metal halide lamp arc tube of making of it has photochromic good stability, advantages such as long service life.The existing patent No. is the integrated ceramic metal halide lamp electric arc tube of ZL200820166891.8, large-scale production now, but its shortcoming is, its earthenware is if adopt the forming method of high temperature insostatic pressing (HIP), also need remove resinae internal mold impurity after the moulding, very easily cause impurity residual, ceramic matrix is polluted; Its earthenware is if adopt grouting adsorption forming method, although overcome contaminated defective, molding time is long, and production efficiency is low, the manufacturing cost height.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of ceramic metal halide lamp arc tube, and manufacture craft is simple, stable performance, and the production efficiency height, cost is low.
The utility model technical scheme that adopts of dealing with problems is: a kind of ceramic metal halide lamp arc tube, comprise translucent alumina discharge cavity and pair of electrodes, be filled with startup gas in this discharge cavity, mercury and metal halide, described translucent alumina discharge cavity comprises the cylindrical drum discharge cavity be made up of two ceramic bodies that have concaveconvex structure respectively and be complementary and the slender type tail pipe at two ends, described two ceramic bodies that have concaveconvex structure respectively and be complementary adopt arc transition to be connected respectively with between the tail pipe at two ends, described pair of electrodes stretches into the tail pipe at two ends respectively to the cylindrical drum discharge cavity, and hermetic seal.
As further improvement, the geometric parameter of described translucent alumina discharge cavity is corresponding with the power of lamp.
Two ceramic bodies that have concaveconvex structure respectively and be complementary in the utility model can be on the centre symmetry line of cylindrical drum discharge cavity at the position of inlaying when synthetic, also can be in other proper site of cylindrical drum discharge cavity, the length of its concavo-convex part can be between 0.5mm～2.5mm, and thickness is between 0.15mm～0.75mm; The external diameter of cylindrical drum discharge cavity can be between 5.5mm～20mm in the utility model, wall thickness is between 0.3mm～1.5mm, the external diameter of tail pipe can be between 1.5mm～5.8mm, internal diameter is between 0.4mm～3.2mm, and the utility model is applicable to makes the ceramic metal halide lamp arc tube of power between 20W～400W.The metal halide that is filled in the translucent alumina discharge cavity can be in the halide of Na, Tl, In, Dy, Ho, Tm, Gd, Li one or more.
The ceramic body that has concaveconvex structure in the utility model and be complementary utilizes particular manufacturing craft to form respectively under the high temperature insostatic pressing (HIP) condition, be assembled into one after low-temperature defatted, be warming up to 1300 ℃ ± 200 ℃ pre-burnings, in 1800 ℃ ± 50 ℃ hydrogen stove, be incubated 1～3 hour again, can do moulding such as incorporate earthenware, all identical with the photoelectric parameter of its ceramic metal helide lamp of producing with the integrated ceramic metal halide lamp with index of aging.
The beneficial effects of the utility model are: adopted the ceramic body that has concaveconvex structure and be complementary to inlay incorporated cylindrical drum discharge cavity, its manufacture craft is simple, and stable performance has improved production efficiency, has also reduced production cost simultaneously.
Description of drawings
Fig. 1 is the sectional structure schematic diagram of the utility model embodiment 1.
Fig. 2 is the translucent alumina discharge cavity cross-sectional schematic of the utility model embodiment 1.
Fig. 3 is the sectional structure schematic diagram of the utility model embodiment 2.
Fig. 4 is the translucent alumina discharge cavity cross-sectional schematic of the utility model embodiment 2.
Below in conjunction with accompanying drawing the utility model is described further:
Embodiment
Embodiment 1: in conjunction with Fig. 1, shown in Figure 2, be the 70W ceramic metal halide lamp arc tube, comprise translucent alumina discharge cavity and pair of electrodes, the translucent alumina discharge cavity comprises the cylindrical drum discharge cavity 1 be made up of two ceramic bodies that have concaveconvex structure respectively and be complementary and the slender type tail pipe 2 at two ends, its concavo-convex position just in time is on the centre symmetry line of cylindrical drum discharge cavity 1, the external diameter of its cylindrical drum discharge cavity 1 is 7.0mm, wall thickness 0.6 ± 0.1mm, length 9.4mm, the thickness of concavo-convex part are 0.3 ± 0.05mm; The external diameter of tail pipe 2 is 2.1mm, wall thickness 0.3 ± 0.05mm, length 14 ± 0.1mm.Two ceramic bodies that have concaveconvex structure and be complementary adopt arc transition to be connected respectively with between the tail pipe 2 at two ends, and linking radius between the two is respectively the circular arc 6 of 1.5mm and the circular arc 7 of 3.5mm.Pair of electrodes stretches into the tail pipe at two ends respectively to cylindrical drum discharge cavity 1, electrode comprises tungsten electrode head 3, be wound with the molybdenum rod 4 of molybdenum circle and form as the niobium bar 5 of contact conductor, adopt the glass solder hermetic seal between niobium bar 5 and the tail pipe 2, in this cylindrical drum discharge cavity 1, be filled with the halide that starts gas, mercury and metal Na, Dy, Tm, Tl, Li.
The utility model is when lighting a lamp, and its colour temperature is 3000K, color rendering index 82, light efficiency 95lm/W, and the light sustainment rate under the burning-point 9000 hours is 72%.
Embodiment 2: in conjunction with Fig. 3, shown in Figure 4, be the 70W ceramic metal halide lamp arc tube, comprise translucent alumina discharge cavity and pair of electrodes, the translucent alumina discharge cavity comprises the cylindrical drum discharge cavity 1 be made up of two ceramic bodies that have concaveconvex structure respectively and be complementary and the slender type tail pipe 2 at two ends, and its concavo-convex position is in 1/3rd positions of cylindrical drum discharge cavity 1.All the other are identical with embodiment 1.
Claims (1)
1. ceramic metal halide lamp arc tube, comprise translucent alumina discharge cavity and pair of electrodes, it is characterized in that: described translucent alumina discharge cavity comprises the cylindrical drum discharge cavity (1) be made up of two ceramic bodies that have concaveconvex structure respectively and be complementary and the slender type tail pipe (2) at two ends, described two have ceramic body that concaveconvex structure is complementary and adopt arc transition to be connected respectively with between the tail pipe (2) at two ends, described pair of electrodes stretches into the tail pipe (2) at two ends respectively to cylindrical drum discharge cavity (1), and hermetic seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201907519U CN201532933U (en) | 2009-08-06 | 2009-08-06 | Arc tube of ceramic metal halide lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201907519U CN201532933U (en) | 2009-08-06 | 2009-08-06 | Arc tube of ceramic metal halide lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201532933U true CN201532933U (en) | 2010-07-21 |
Family
ID=42528334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201907519U Expired - Lifetime CN201532933U (en) | 2009-08-06 | 2009-08-06 | Arc tube of ceramic metal halide lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201532933U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102468113A (en) * | 2010-10-28 | 2012-05-23 | 慕全文 | Lamp tube for electrodeless lamp and normal temperature connection method thereof |
| WO2013113178A1 (en) * | 2012-01-31 | 2013-08-08 | Yang Chaoping | Twinset ceramic blister and manufacturing method thereof |
-
2009
- 2009-08-06 CN CN2009201907519U patent/CN201532933U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102468113A (en) * | 2010-10-28 | 2012-05-23 | 慕全文 | Lamp tube for electrodeless lamp and normal temperature connection method thereof |
| CN102468113B (en) * | 2010-10-28 | 2015-06-24 | 烟台茂翔电子科技有限公司 | Lamp tube for electrodeless lamp and normal temperature connection method thereof |
| WO2013113178A1 (en) * | 2012-01-31 | 2013-08-08 | Yang Chaoping | Twinset ceramic blister and manufacturing method thereof |
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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 |
Granted publication date: 20100721 |
|
| CX01 | Expiry of patent term |