CN202564179U - A CMH cylinder-shaped ceramic metal halide lamp and electric arc tube - Google Patents
A CMH cylinder-shaped ceramic metal halide lamp and electric arc tube Download PDFInfo
- Publication number
- CN202564179U CN202564179U CN2012202460294U CN201220246029U CN202564179U CN 202564179 U CN202564179 U CN 202564179U CN 2012202460294 U CN2012202460294 U CN 2012202460294U CN 201220246029 U CN201220246029 U CN 201220246029U CN 202564179 U CN202564179 U CN 202564179U
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- Prior art keywords
- cylinder
- drum
- arc tube
- metal halide
- electric arc
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Abstract
The utility model discloses a CMH cylinder-shaped ceramic metal halide lamp and an electric arc tube. The electric arc tube includes a cylinder-shaped discharge chamber and elongated tail tubes at both ends. A middle straight tube portion of the cylinder-shaped discharge chamber is in a cylindrical shape; both ends of the cylinder-shaped discharge chamber are round stages in shape; and the cylinder-shaped discharge chamber and the elongated tail tubes at both ends are in an integral structure. A pair of electrodes of the metal halide lamp extends into the tail tubes at both ends and into the cylinder-shaped discharge chamber respectively, and is sealed airtightly. The CMH cylinder-shaped ceramic metal halide lamp and the electric arc tube of the utility model are advantageous in favorable air tightness and color rendering property, uniformly distributed tube wall temperature, high luminous efficiency and long service life.
Description
Technical field
The utility model belongs to the electric light source field, is specifically related to a kind of CMH drum-shape ceramic gold-halogen lamp and electric arc tube.
Background technology
At present; The preferred polycrystalline alumina ceramic cell-shell of illuminating industry is compared with the adaptation cell-shell that belongs to silicate material together, has better stability at elevated temperature, and it at high temperature can tangible chemical reaction not take place with metal halide; The ceramic metal halide lamp arc tube made from it has photochromic good stability; Advantages such as long service life, 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 influence air-tightness, color rendering and the useful life of electric arc tube.Although some adopts incorporate structure to overcome above-mentioned shortcoming, the Temperature Distribution the when design of shape makes ceramic metal helide lamp work is unreasonable, causes photoelectricity such as light efficiency and color rendering to think the decline of ability equally.
Summary of the invention
The utility model technical problem to be solved provides a kind of CMH drum-shape ceramic gold-halogen lamp and electric arc tube, and air-tightness and color rendering are good, wall pipe uniformity of temperature profile, and light efficiency is high, long service life.
The utility model technical scheme that adopts of dealing with problems is:
A kind of CMH drum-shape arc tube for ceramic metal halide lamp; The slender type tail pipe that comprises drum-shape arc chamber and two ends; The middle straight tube portion of said drum-shape arc chamber is cylindrical, and drum-shape arc chamber two ends are truncated cone-shaped, and the slender type tail pipe at drum-shape arc chamber and two ends is integrated.
Provide a kind of CMH drum-shape ceramic gold-halogen lamp the another order of the utility model, also comprise pair of electrodes, pair of electrodes stretches into respectively in tail pipe to the drum-shape arc chamber at two ends, and hermetic seal.
The beneficial effect of the utility model is: the cylinder type discharge cavity adopts integral structure, and air-tightness and color rendering are better, and tube wall temperature is evenly distributed, and light efficiency is high, long service life.
Description of drawings
Fig. 1 is the sectional structure sketch map of the utility model embodiment.
Fig. 2 is the translucent alumina discharge cavity structural representation of the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing the utility model is further specified:
In conjunction with Fig. 1, shown in Figure 2; Be 150W drum-shape CMH drum-shape ceramic gold-halogen lamp; Comprise electric arc tube and pair of electrodes, electric arc tube comprises the slender type tail pipe 2 at drum-shape arc chamber 1 and two ends, and the middle straight tube portion of drum-shape arc chamber 1 is cylindrical; Two afterbody two ends are truncated cone-shaped 3, and whole electric arc tube is integrated.Pair of electrodes stretches into respectively in tail pipe 2 to the drum-shape arc chamber 1 at two ends, and hermetic seal.
In the present embodiment, the external diameter of drum-shape arc chamber 1 is 13.2 ± 0.1mm, wall thickness 0.6 ± 0.1mm; Length 28 ± 0.2mm, the external diameter of tail pipe 2 is 3.9 ± 0.1mm; Internal diameter is 1.8 ± 0.05mm, length 16 ± 0.1mm, and the radius of corner of truncated cone-shaped is 4.0 ± 0.1mm.Pair of electrodes stretches into respectively in tail pipe to the drum-shape arc chamber at two ends, adopts the glass solder hermetic seal between electrode and the tail pipe 2, and whole electric arc tube is integrated.This drum-shape arc chamber 1 is filled with startup gas, and its startup gas is: halide such as mercury and metal Na, Ti, LI.
The utility model is when lighting a lamp, and its colour temperature is 3000K ± 100K, and color rendering index is 85, and the light sustainment rate under the light efficiency 93lm/W, burning-point 8000 hours is higher than 75%.
Claims (2)
1. CMH drum-shape arc tube for ceramic metal halide lamp; The slender type tail pipe (2) that comprises drum-shape arc chamber (1) and two ends; The middle straight tube portion that it is characterized in that said drum-shape arc chamber (1) is cylindrical; Drum-shape arc chamber (1) two ends are truncated cone-shaped, and drum-shape arc chamber (1) is integrated with the slender type tail pipe (2) at two ends.
2. an application rights requires the ceramic gold-halogen lamp of 1 said electric arc tube, also comprises pair of electrodes, it is characterized in that said pair of electrodes stretches into the tail pipe at two ends (2) respectively to drum-shape arc chamber (1), and hermetic seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202460294U CN202564179U (en) | 2012-05-29 | 2012-05-29 | A CMH cylinder-shaped ceramic metal halide lamp and electric arc tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202460294U CN202564179U (en) | 2012-05-29 | 2012-05-29 | A CMH cylinder-shaped ceramic metal halide lamp and electric arc tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202564179U true CN202564179U (en) | 2012-11-28 |
Family
ID=47213807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202460294U Expired - Fee Related CN202564179U (en) | 2012-05-29 | 2012-05-29 | A CMH cylinder-shaped ceramic metal halide lamp and electric arc tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202564179U (en) |
-
2012
- 2012-05-29 CN CN2012202460294U patent/CN202564179U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20190529 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |