CN201259880Y - Integrated arc tube for ceramic metal halide lamp - Google Patents
Integrated arc tube for ceramic metal halide lamp Download PDFInfo
- Publication number
- CN201259880Y CN201259880Y CNU2008201668918U CN200820166891U CN201259880Y CN 201259880 Y CN201259880 Y CN 201259880Y CN U2008201668918 U CNU2008201668918 U CN U2008201668918U CN 200820166891 U CN200820166891 U CN 200820166891U CN 201259880 Y CN201259880 Y CN 201259880Y
- Authority
- CN
- China
- Prior art keywords
- discharging cavity
- discharge cavity
- metal halide
- translucent alumina
- arc tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses an electric arc tube of an integrated ceramic metal halide lamp, being composed of a translucent alumina discharging cavity and a pair of electrodes; starting gas, mercury and metal halide are charged in the discharging cavity; the translucent alumina discharging cavity comprises a cylinder discharging cavity and slender type tail tubes at two ends of the translucent alumina discharging cavity; the cylinder discharging cavity and the slender type tail tubes at two ends of the translucent alumina discharging cavity are connected by an arc in a transition way, and the whole discharging cavity is an integrating structure; a pair of electrodes are respectively extended into the tail tubes at the two ends of the translucent alumina discharging cavity to the inner part of the cylinder discharging cavity, then hermetic sealing is carried out. The electric arc tube has simple structure, air tightness and color rendering are good, the temperature distribution on a tube wall is uniform, and the service life is long.
Description
Technical field
The utility model relates to a kind of electric arc tube of illuminating industry, particularly a kind of integrated ceramic metal halide lamp electric arc tube.
Background technology
At present, the preferred polycrystalline alumina ceramic material of illuminating industry is compared with the quartz 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, but because the discharge cavity of existing ceramic metal halide lamp arc tube mostly adopts split type, by two bodies or many bodies respectively after the molding moulding again butt joint fire and form, between discharge cavity and tail pipe, both there had been stress, can form cold spot again, liquid metal halide is piled up at this, thereby influenced the air-tightness of electric arc tube, color rendering and useful life.Although some adopts incorporate structure to overcome above-mentioned shortcoming, the Temperature Distribution the when design of shape makes lamp work is unreasonable, causes the decline of photoelectric properties such as light efficiency and color rendering equally.Ceramic metal helide lamp now just to increase by 37% amplitude fast development year, set up conservation-minded society to China and be significant by the industrialization of premium quality product.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of integrated ceramic metal halide lamp electric arc tube, and simple in structure, air-tightness and color rendering are good, and tube wall temperature is evenly distributed, long service life.
The utility model technical scheme that adopts of dealing with problems is: integrated ceramic metal halide lamp electric arc tube, comprise translucent alumina discharge cavity and pair of electrodes, be filled with in this discharge cavity and start gas, mercury and metal halide, described translucent alumina discharge cavity comprises the slender type tail pipe at cylindrical drum discharge cavity and two ends, adopt arc transition to be connected between the tail pipe at described cylindrical drum discharge cavity and two ends, whole discharge cavity is integrated, 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.
The external diameter of cylindrical drum discharge cavity can be between 5.5mm～20mm in the utility model, wall thickness is between 0.4mm～1.3mm, the external diameter of tail pipe can be between 1.5mm～5.8mm, internal diameter is between 0.4mm～3.2mm, is applicable to make 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 among Na, Tl, In, Dy, Ho, Tm, Na, the Gd one or more.
The beneficial effects of the utility model are: the slender type tail pipe at cylindrical drum discharge cavity and two ends adopts integral structure, and air-tightness and color rendering are better, and tube wall temperature is evenly distributed, long service life.
Description of drawings
Fig. 1 is the sectional structure schematic diagram of present embodiment.
Fig. 2 is the translucent alumina discharge cavity structural representation of the utility model embodiment.
Below in conjunction with accompanying drawing the utility model is described further:
Embodiment
In conjunction with Fig. 1, shown in Figure 2, be 70W integrated ceramic metal halide lamp electric arc tube, comprise translucent alumina discharge cavity and pair of electrodes, the translucent alumina discharge cavity comprises the slender type tail pipe 2 at cylindrical drum discharge cavity 1 and two ends, discharge cavity 1 external diameter be 7.0mm, wall thickness 0.6 ± 0.1mm, length 9.4mm; The external diameter of tail pipe 2 is 2.1mm, wall thickness 0.3 ± 0.05mm, length 14 ± 0.1mm.Adopt circular arc excessively to be connected between the tail pipe 2 at cylindrical drum discharge cavity 1 and two ends, two linking radiuses between all are 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 the cylindrical drum discharge cavity, electrode comprises tungsten electrode head 3, be wound with the molybdenum rod 4 of molybdenum circle and form as the tungsten bar 5 of contact conductor, adopt the glass solder hermetic seal between tungsten bar 5 and the tail pipe 2, whole discharge cavity is integrated, and is filled with to start gas, mercury and metal halide Na, Tl, Dy, Gd in this discharge cavity.
The utility model is when lighting a lamp, and its colour temperature is 4200K, color rendering index 87, light efficiency 83, compares with the quartzy spot with power, and light efficiency improves 15%, and color rendering index improves 8%, and the light sustainment rate under the burning-point 9000 hours is higher than 70%.
Claims (2)
1, a kind of integrated ceramic metal halide lamp electric arc tube, comprise translucent alumina discharge cavity and pair of electrodes, be filled with in this discharge cavity and start gas, mercury and metal halide, it is characterized in that: described translucent alumina discharge cavity comprises the slender type tail pipe (2) at cylindrical drum discharge cavity (1) and two ends, adopt arc transition to be connected between the tail pipe (2) at described cylindrical drum discharge cavity (1) and two ends, whole discharge cavity is integrated, described pair of electrodes stretches into the tail pipe (2) at two ends respectively to cylindrical drum discharge cavity (1), and hermetic seal.
2, integrated ceramic metal halide lamp electric arc tube as claimed in claim 1, it is characterized in that: the geometric parameter of described translucent alumina discharge cavity is corresponding with the power of lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201668918U CN201259880Y (en) | 2008-10-23 | 2008-10-23 | Integrated arc tube for ceramic metal halide lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201668918U CN201259880Y (en) | 2008-10-23 | 2008-10-23 | Integrated arc tube for ceramic metal halide lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201259880Y true CN201259880Y (en) | 2009-06-17 |
Family
ID=40774116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201668918U Expired - Lifetime CN201259880Y (en) | 2008-10-23 | 2008-10-23 | Integrated arc tube for ceramic metal halide lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201259880Y (en) |
-
2008
- 2008-10-23 CN CNU2008201668918U patent/CN201259880Y/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: 20090617 |
|
| CX01 | Expiry of patent term |