CN201336286Y - Metal halide lamp - Google Patents
Metal halide lamp Download PDFInfo
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- CN201336286Y CN201336286Y CNU2009200377271U CN200920037727U CN201336286Y CN 201336286 Y CN201336286 Y CN 201336286Y CN U2009200377271 U CNU2009200377271 U CN U2009200377271U CN 200920037727 U CN200920037727 U CN 200920037727U CN 201336286 Y CN201336286 Y CN 201336286Y
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- metal halide
- lamp
- tube
- halide lamp
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Abstract
The utility model relates to a metal halide lamp, which can increase the load of the wall of the lamp tube and improve the LTE circulation in the lamp tube at the same time, thereby effectively reducing the blackening speed of the inner wall of the lamp tube and prolonging the service life of the metal halide lamp. The metal halide lamp includes an electric arc tube; two electrodes are arranged in the electric arc tube; the distance between the electrodes is 10-11mm; and the electric arc tube is olivary and has a maximal tube diameter of 13-14mm. As the improvement of the utility model, the stretching-in length of the electrodes is 4.25-4.75mm. By adopting the novel structure of the lamp tube, the utility model can increase the load of the wall of the lamp tube and improve the LTE circulation in the lamp tube at the same time, thereby effectively reducing the blackening speed of the inner wall of the lamp tube and prolonging the service life of the metal halide lamp. Therefore, the electrooptical technology performance of the utility model can be improved to a large extent, that is, not only the optical efficiency is increased to 100 Lm/W, the color rendering index Ra is larger than 80, and the correlated color temperature is 4000K, but also the service life of the lamp tube is longer than 5000 hours.
Description
Technical field
The utility model relates to a kind of metal halide lamp.
Background technology
The locomotive engine headlamp uses high-power tungsten halogen lamp always for a long time, xenon lamp, and not only big the and light intensity difference of power consumption, life-span are short, travel along with train repeatedly raises speed, and more need high strength, high illumination locomotive engine headlamp.Metal halide lamp has luminous intensity height, long advantage of life-span, but interior lamp tube structure size that existing metal halide lamp is main and electrode design all are to adopt conventional project organization and technical process, electrode distance is longer, and the electric arc tube diameter is thicker, with lower lamp tube wall lotus (15W/cm
2About) in the hope of the long life-span, and cold junction temperature also lower (below 700 ℃), thereby existing metal halide lamp is in photoelectric technology performance and the requirement that can't satisfy the locomotive engine headlamp qualitatively.For trying to achieve higher quartz metal halide lamp photoelectric technology performance, to reach better energy-saving effect, I explore the photoelectric technology performance that improves metal halide lamp with the method that improves the lamp tube wall lotus at company in recent years, because the softening temperature of quartz bulb shell material is about 1300 ℃, fluorescent tube should descend operate as normal about 1100 ℃ in view of the above.Problem is when raising metal halide lamp tube wall load increases the working temperature of quartzy tube wall, the temperature that it not only can increase electrode also can increase the release of quartz ampoule surface impurities, the raising of these impurity concentrations can change the balance (LTE) of the topochemistry thermodynamic cycle in the quartz ampoule, thereby quicken the quick melanism of quartzy tube wall, and increase light decay, shortening life-span.
The utility model content
The utility model provides a kind of metal halide lamp, when improving the lamp tube wall load, improves the LTE circulation in the fluorescent tube, effectively delays the melanism speed of tube inner wall, prolongs the useful life of metal halide lamp.
Described metal halide lamp comprises electric arc tube, is provided with two electrodes in the electric arc tube, and electrode distance is 10-11mm, and electric arc tube is an olive-type, and maximum caliber is 13-14mm.
As improvement of the present utility model, the electrode built-in length is 4.25-4.75mm.
The utility model is owing to adopted above-mentioned new lamp tube structure, and arc tube volume reduces greatly than general metal halide lamp, and when metal halide lamp power was 200W, lamp tube wall was loaded at 30--40W/cm
2Between, cold junction temperature is 800 ℃-900 ℃, simultaneously, improves the LTE circulation in the fluorescent tube, effectively delays the melanism speed of tube inner wall, prolongs the useful life of metal halide lamp.The utility model not only photoelectric technology performance is improved significantly, and the light efficiency height reaches 100Lm/W, and color rendering index reaches Ra＞80, and correlated colour temperature is 4000K, and simultaneously lamp tube service life is greater than 5000 hours, this be because:
1. the raising of cold junction temperature can improve the vapour pressure of the metal halide in the ion plasma in the fluorescent tube, thereby the ion concentration that promptly increases luminescent substance has improved luminous efficiency.
2. can reduce the filling dose of metal halide on the basis of the photoelectric technology performance of guaranteeing metal halide lamp relatively, it not only can reduce metal halide also can improve LTE circulation in the fluorescent tube to the corrosion of quartz bulb shell.
3. shortened electrode distance, under identical fluorescent tube pressure drop, be equivalent to improve the pressure drop (being electric field strength) of unit arc length, it makes, and the electron energy (electron temperature) in the ion plasma increases in approximately uniform electronics free path, the excitation probability of luminescent substance ion can be improved effectively, the color developing that luminous efficiency can also improve metal halide lamp can not only be further improved.
4. electric arc tube adopts the olive ball-type, and the cast than the metal halide lamp of routine adopts can make bulb tube wall more uniform temperature everywhere.
5. the electrode built-in length redesigns, and better improves cold junction temperature.
Description of drawings
Fig. 1 is the utility model structure chart, and wherein: 1 is that shell quartz ampoule, 2 is that electric arc tube, 3 is that stainless steel lamp holder, 4 is getter.
Embodiment
As shown in Figure 1, the utility model comprises shell quartz ampoule 1, electric arc tube 2, stainless steel lamp holder 3 and getter 4, and electric arc tube 2 and getter 4 are encapsulated in the shell quartz ampoule 1, and two stainless steel lamp holders 3 are contained in the two ends of shell quartz ampoule 1 respectively.Wherein electric arc tube 2 is an olive-type, is provided with two electrodes 5 in it, and electrode distance is 11mm, and electrode gos deep into length 4.5mm.
The utility model electric arc tube 2 filling scandium sodium iodide 1-2mg, mercury 13-15mg, argon gas 150 torrs, and micro amount of oxygen.100 volts of lamp works voltages, 2.3 amperes of operating currents.Also can refill additive into a small amount of other promotion oxyhalogen tungsten circulation, with the deposition of tungsten on the Cleaning luminaire tube wall, the high fluorescent tube lumen depreciation of dike, life-saving.
Signal of communication inspection point, table 1 Ministry of Railways product quality supervision and inspection center assay
Table 1 is preceding according to metal halide lamp as the 200W locomotive engine for the utility model, the result of the check in Ministry of Railways product quality inspection center 22 days-August 11 February in 2008, because the Ministry of Railways does not have before the international locomotive engine can reference according to the metal halide lamp standard, so working out life standard for the first time requires lower, promptly stop burning-point after 1600 hours, and the utility model actual life much larger than 5000 hours, the domestic like product life-span of still not having other light source producer reaches this standard at present.Because Ministry of Railways's product quality inspection center method of testing and national light source standard are not quite similar, as lamp power is the gross power of fluorescent tube and ballast, and table 2 is pressed the general measure data that the electric light source international standard is measured for the utility model as shining metal halide lamp before the 200W locomotive engine.
Shine metal halide lamp general measure data before the table 2 200W locomotive engine
| Production number | Correlated colour temperature (K) | Color rendering index (Ra) | Luminous flux (Lm) | Light efficiency (Lm/w) | Modulating voltage (V) | Lamp current (A) | Lamp power (W) |
| JLZ250-1 number | 4170 | 83.2 | 21912 | 105.37 | 98.8 | 2.451 | 208.04 |
| JLZ250-2 number | 4155 | 83.8 | 22958 | 105.54 | 110.1 | 2.33 | 217.52 |
| JLZ250-3 number | 4145 | 84.3 | 21798 | 102.64 | 104.1 | 2.401 | 212.37 |
| JLZ250-4 number | 4079 | 84.2 | 21571 | 101.61 | 105.0 | 2.392 | 212.28 |
| JLZ250-5 number | 4068 | 85.0 | 21917 | 103.09 | 105.0 | 2.391 | 212.61 |
Claims (4)
1. a metal halide lamp comprises electric arc tube, is provided with two electrodes in the electric arc tube, it is characterized in that electrode distance is 10-11mm, and electric arc tube is an olive-type, and maximum caliber is 13-14mm.
2. metal halide lamp as claimed in claim 1 is characterized in that the electrode built-in length is 4.25-4.75mm.
3. metal halide lamp as claimed in claim 1 or 2 is characterized in that described metal halide lamp is a quartz metal halide lamp.
4. metal halide lamp as claimed in claim 1 or 2 is characterized in that described metal halide lamp is the 200W metal halide lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200377271U CN201336286Y (en) | 2009-01-21 | 2009-01-21 | Metal halide lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200377271U CN201336286Y (en) | 2009-01-21 | 2009-01-21 | Metal halide lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201336286Y true CN201336286Y (en) | 2009-10-28 |
Family
ID=41287946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200377271U Expired - Fee Related CN201336286Y (en) | 2009-01-21 | 2009-01-21 | Metal halide lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201336286Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102097277A (en) * | 2010-11-23 | 2011-06-15 | 浙江华氏照明科技有限公司 | Novel quartz metal halide lamp |
-
2009
- 2009-01-21 CN CNU2009200377271U patent/CN201336286Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102097277A (en) * | 2010-11-23 | 2011-06-15 | 浙江华氏照明科技有限公司 | Novel quartz metal halide lamp |
| CN102097277B (en) * | 2010-11-23 | 2016-04-06 | 浙江华氏照明科技有限公司 | A kind of quartz metal halide lamp |
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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: 20091028 Termination date: 20160121 |
|
| EXPY | Termination of patent right or utility model |