CN101399158A - High color development and high color temperature metallic halogen lamp - Google Patents
High color development and high color temperature metallic halogen lamp Download PDFInfo
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- CN101399158A CN101399158A CNA2008101953790A CN200810195379A CN101399158A CN 101399158 A CN101399158 A CN 101399158A CN A2008101953790 A CNA2008101953790 A CN A2008101953790A CN 200810195379 A CN200810195379 A CN 200810195379A CN 101399158 A CN101399158 A CN 101399158A
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Abstract
The invention relates to a lighting fixture, in particular to a metal halide lamp with high color rendition and high color temperature. The metal halide lamp is provided with a lamp cap, a bulb shell, an electric arc tube, a core column, etc. Two ends of the electric arc tube are provided with electrode components consisting of U-shaped molybdenum rods, molybdenum plates and electrodes which are welded orderly in an electric resistance welding way. A discharge chamber is arranged between two electrodes in a quartz bulb shell of the electric arc tube. A line conductor of a bulb is communicated with the inside of the bulb by core column line conductors. One of the core column line conductors is connected with the U-shaped molybdenum rod at one end of the electric arc tube, and the other line conductor is connected with the U-shaped molybdenum rod at the other end of the electric arc tube. The electric arc tube is fixed at the support component by an electric arc tube ribbon. The metal halide lamp has high lighting effect; the high color temperature index CCT is more than or equal to 7000K; the high color rendition index CRI is more than or equal to 85; compared with the tungsten halide lamp or ordinary filament lamp, the metal halide lamp has the high illumination efficiency eta more than or equal to 70Lm/W and the longer service life L more than or equal to 4000H and saves the energy by 60 percent approximately. The metal halide lamp is fit for the occasions with large illumination area, such as stadium, factory, industrial and mining occasion, fishing operation occasion, etc.
Description
Affiliated technical field
The present invention relates to a kind of lighting, especially a kind of high color development and high color temperature metallic halogen lamp.
Background technology
The general leading peak formula leakage field ballast that adopts of the high-power Metal halogen lamp that now adopts single-ended Metal halogen lamp standard GB/T18661 and single-ended Metal halogen lamp North America standard A NSI_ANSLGC78.43-2007 to produce carries out ballast, because the retarded type ballast has simple in structure with respect to leading peak formula ballast, low price, in light weight, easy to use and reliable, advantages such as ballast when work power consumption is less, therefore, requirement can supporting use hysteresis formula reactance ballast the market demand of metal halide lamp increasing, but use hysteresis formula reactance ballast must solve following problem for high-power Metal halogen lamp:
During big electric current, the various pad chronicity of bulb circuit passage, high temperature down can reliability Work problem: as: the 1KW Metal halogen lamp is being worked under the formula ballast of leading peak, and the bulb operating voltage 240～280V of general technology standard is about operating current 4.2A, and employing hysteresis formula ballast, the operating voltage of bulb is generally at 110～140V, and the bulb operating current is between 8～11A, and in the bulb start-up course, the starting current of bulb is taller, and we know the caloric value J=I of conductor
2RT, the rapid increase of bulb operating current, to cause the temperature of each parts on the bulb internal current passage to be compared and be exponential increasing, this is to the black box of electric arc tube: molybdenum sheet, molybdenum rod, the position that electrode is welded to each other is a greatly test, may make the quartz glass explosion owing to the temperature too fast tensile strength that causes the expansion of metal aggravation to surpass quartz glass that raises, and causes bulb to lose efficacy; And because the increasing of bulb operating current, in the bulb application process, can cause lamp holder and lamp socket under the contact resistance effect, the lamp holder temperature rise cause adopt common scolding tin welding meeting between bulb lead and lamp holder since scolding tin may melt or hot mastication after wriggling cause bulb poor electric contact, reliability decrease; In addition, the glass cell-shell of bulb finish seal exhaust after, need to be connected reliably with lamp holder, standard code should not become flexible under torsional moment 3.0N*M, but because the glass of the metal of lamp holder and bulb outside bulb shell is widely different on the coefficient of expansion and thermal conductivity, if so bulb burning-point-extinguish-burning-point constantly in the whole life-span course of work of circulation the connected mode design improper, can cause outer using glass bulb fatigue damage under stress, cause the bulb inefficacy.
Under the big electric current, guarantee the problem that electric arc tube is worked reliably and with long-term: in high-intensity gas discharge lamp (HID), the electrode of electric arc tube is a core component, if the improper meeting of electrode design causes starting difficulty, early stage blackout etc. causes bulb early failure.
Summary of the invention
The technical problem to be solved in the present invention is: in order to solve the problems of the technologies described above, the invention provides a kind of and the matching used high color development and high color temperature metallic halogen lamp of hysteresis formula reactance ballast, it has high-power, high colour temperature, high color rendering index (CRI), high-luminous-efficiency and long-life effect.
The technical solution adopted for the present invention to solve the technical problems is: a kind of high color development and high color temperature metallic halogen lamp, has lamp holder, cell-shell, electric arc tube and stem stem, strutting piece, the electric arc tube band, with the stem stem lead, the electric arc tube two ends are provided with by U type molybdenum rod, the electrode assemblie that molybdenum sheet and electrode are welded to form by the electric resistance welding mode successively, be discharge cavity between two electrodes in the electric arc tube quartz bulb shell, the lead of bulb is communicated to bulb inside by the stem stem lead of stem stem, in the stem stem lead one is connected with electric arc tube one end U type molybdenum rod, another root is connected with electric arc tube other end U type molybdenum rod by strutting piece, and electric arc tube is fixed on the strutting piece by the electric arc tube band.
Further, the electric arc tube upper end is provided with two resiliency supported sheets, and the lower end is provided with the stem stem band, and electric arc tube is supported in the cell-shell by two resiliency supported sheets and stem stem band.
Further, the energy-saving Metal halogen lamp of high color development and high color temperature, be provided with also that first electric current connects flexible conductor, second electric current connects flexible conductor and is connected flexible conductor with the 3rd electric current, a lead of described stem stem connects flexible conductor by first electric current and is connected with electric arc tube one end U type molybdenum rod, and another root lead of described stem stem is connected flexible conductor and is connected with electric arc tube other end U type molybdenum rod by second electric current connection flexible conductor, strutting piece successively with the 3rd electric current.Cause each solder joint in the current channel to accept when adopting flexible conductor to connect mainly to be and come off, cause current channel to disconnect lamp was lost efficacy for expanding with heat and contract with cold in bulb burning-point and extinguishing process such as the quartz ampoule that prevents metal parts and electric arc tube in the bulb.
U type molybdenum rod Φ≤1.2mm, the spacing between U type molybdenum rod two poles is 3.5mm, and U type molybdenum rod welding ends is crushed, and flattening length is 3mm, and flattening thickness is 1.75mm.Owing to have certain spacing between the U type molybdenum rod, also just disperseed quartz glass at the tensile stress that press seal and the course of work are subjected to, reduced the cold quick-fried possibility of quartz glass, improved the reliability of bulb greatly.
Discharge cavity internal diameter Φ 23mm, discharge cavity 34 length 115mm, effectively the discharge arc length can reach 96mm in this discharge cavity.
Described lamp holder adopts inferior arc-welding mode to be connected with the bulb lead, and lamp holder and cell-shell adopt mechanical connection.
The invention has the beneficial effects as follows: this Metal halogen lamp light efficiency is good, high color temperature index number CCT 〉=7000K, high color rendering index (CRI) CRI 〉=85, tungsten halogen lamp or ordinary incandescent lamp have high luminous efficiency η 〉=70Lm/W relatively, long life-span L 〉=4000H, energy-conservation about 60%, therefore be fit to the needs occasion of lighting area greatly, as stadiums, factory building, industrial and mineral and fishery operation etc.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the structural representation of electric arc tube part.
Fig. 3 is the structural representation of electrode assemblie.
Among the figure: 1. lamp holder, 2. cell-shell, 3. electric arc tube, 31.U the type molybdenum rod, 311. welding endss, 32. molybdenum sheets, 33. electrode, 34. discharge cavities, 35. resiliency supported sheets, 4. stem stem, 41. stem stem leads, 42. stem stem bands, 5. strutting piece, 6. electric arc tube band, 7. first electric current lead that is flexible coupling, 8. second electric current lead that is flexible coupling, 9. the 3rd electric current lead that is flexible coupling.
Embodiment
As Fig. 1, a kind of high color development and high color temperature metallic halogen lamp shown in 2, has lamp holder 1, cell-shell 2, electric arc tube 3, stem stem 4, strutting piece 5, electric arc tube band 6 and stem stem lead 41, electric arc tube 3 upper ends are provided with two resiliency supported sheets 35, the lower end is provided with stem stem band 42, electric arc tube 3 is supported in the cell-shell 2 by two resiliency supported sheets 35 and stem stem band 42, electric arc tube 3 two ends are provided with by U type molybdenum rod 31, molybdenum sheet 32, the electrode assemblie that is welded to form by the electric resistance welding mode successively with electrode 33, be discharge cavity 34 between two electrodes 33 in electric arc tube 3 quartz bulb shells, discharge cavity 34 internal diameter Φ 23mm, discharge cavity 34 length 115mm, the lead of bulb is communicated to bulb inside by the stem stem lead 4 of stem stem 4, one is connected with electric arc tube 2 one end U type molybdenum rods 31 in the stem stem lead 41, another root is connected with electric arc tube 3 other end U type molybdenum rods 31 by strutting piece 5, and electric arc tube 3 is fixed on the strutting piece 5 by electric arc tube band 6.
As shown in Figure 1, high color development and high color temperature metallic halogen lamp, be provided with also that first electric current connects flexible conductor 7, second electric current connects flexible conductor 8 and is connected flexible conductor 9 with the 3rd electric current, a lead of described stem stem 4 connects flexible conductor 7 by first electric current and is connected with electric arc tube 3 one end U type molybdenum rods 31, and another root lead of described stem stem 3 is connected flexible conductor 9 and is connected with electric arc tube 3 other end U type molybdenum rods 31 by second electric current connection flexible conductor 8, strutting piece 5 successively with the 3rd electric current.Cause each solder joint in the current channel to accept when adopting flexible conductor to connect mainly to be and come off, cause current channel to disconnect lamp was lost efficacy for expanding with heat and contract with cold in bulb burning-point and extinguishing process such as the quartz ampoule that prevents metal parts and electric arc tube 3 in the bulb.
As shown in Figure 3, U type molybdenum rod Φ≤1.2mm, the spacing between 31 liang of poles of U type molybdenum rod is 3.5mm, and U type molybdenum rod welding ends 311 is crushed, and flattening length is 3mm, and flattening thickness is 1.75mm.U type molybdenum rod 31 replaces common straight molybdenum rod, not only make the electric current handling capacity of the thinner high temperature resistant molybdenum rod of Φ 0.7 such diameter reach designing requirement 10.3A, and because there is certain spacing in U type molybdenum rod 31, the tensile stress that has also just disperseed quartz glass to be subjected in press seal and the course of work, reduce the cold quick-fried possibility of quartz glass, improved the reliability of bulb greatly.
The operation principle of this light fixture is: foreign current arrives electrode 33 by U type molybdenum rod 31 again to molybdenum sheet 32, externally under the high trigger voltage effect about electronic trigger 4KV, initial argon-mercury gaseous mixture is breakdown, form avalanche and discharge, discharge turns to arc discharge from glow discharge, carrying out along with discharge, temperature progressively improves in the discharge cavity 34 that cell-shell 2 forms, mercury constantly evaporates, mercury vapor pressure reaches several atmospheric pressure at last, in this process, metal halide also evaporates along with the raising of temperature to enter and be cracked into metal ion and iodide ion participation Discharge illuminating in the electrical discharge arc under the high temperature about the 5000K of plasma, metal ion and iodide ion get back under gaseous exchange or diffusion that low-temperature space near quartzy tube wall is compound again to be metal halide, like this, under certain tube wall temperature, just formed a metastable dynamically balanced air pressure.
This example lamp is to work in 1KW high-voltage sodium lamp ballast ballasting circuit, adopts electronic trigger to trigger and starts.The high-power metallic halide lamp photoelectric parameter testing result of finishing at present is as follows:
| Sample number into spectrum | Pipe is pressed V | Electric current A | Power W | Light efficiency LM/W | Colour temperature K | Color |
| 1 | 115 | 10.5 | 1108 | 73.5 | 8105 | 88 |
| 2 | 108 | 10.7 | 1120 | 72.1 | 8293 | 87 |
| 3 | 118 | 10.4 | 1106 | 75.2 | 8097 | 88 |
| 4 | 120 | 10.3 | 1106 | 76 | 7985 | 90 |
Above-mentioned bulb is through 2000 hours life test, and lumen depreciation surpasses 85%, so the life-span finishes 4000 hours of design and can realize certainly.
Claims (7)
1. high color development and high color temperature metallic halogen lamp, has lamp holder (1), cell-shell (2), electric arc tube (3) and stem stem (4), it is characterized in that: also have strutting piece (5), electric arc tube band (6) and stem stem lead (41), the inner two ends of electric arc tube (3) are provided with by U type molybdenum rod (31), the electrode assemblie that molybdenum sheet (32) and electrode (33) are welded to form by the electric resistance welding mode successively, be discharge cavity (34) between two electrodes (33) in the electric arc tube (2), the lead of bulb is communicated to bulb inside by the stem stem lead (41) of stem stem (4), one of stem stem lead (41) is connected with electric arc tube (3) one end U type molybdenum rods (31), another root is connected with electric arc tube (3) other end U type molybdenum rod (31) by strutting piece (5), and electric arc tube (3) is fixed on the strutting piece (5) by electric arc tube band (6).
2. a kind of high color development and high color temperature metallic halogen lamp according to claim 1, it is characterized in that: described electric arc tube (2) upper end is provided with two resiliency supported sheets (35), the lower end is provided with stem stem band (42), and electric arc tube (3) is supported in the cell-shell (2) by two resiliency supported sheets (35) and stem stem band (42).
3. a kind of high color development and high color temperature metallic halogen lamp according to claim 1, it is characterized in that: have also that first electric current connects flexible conductor (7), second electric current connects flexible conductor (8) and is connected flexible conductor (9) with the 3rd electric current, a lead of described stem stem (4) connects flexible conductor (7) by first electric current and is connected with electric arc tube (3) one end U type molybdenum rods (31), and another root lead of described stem stem (4) is connected flexible conductor (9) and is connected with electric arc tube (3) other end U type molybdenum rod (31) by second electric current connection flexible conductor (7), strutting piece (5) successively with the 3rd electric current.
4. a kind of high color development and high color temperature metallic halogen lamp according to claim 1, it is characterized in that: described U type molybdenum rod (31) diameter of phi≤1.2mm, the spacing between U type molybdenum rod (31) two poles is 3.5mm, U type molybdenum rod (31) welding ends is crushed, flattening length is 3mm, and flattening thickness is 1.75mm.
5. a kind of high color development and high color temperature metallic halogen lamp according to claim 1 is characterized in that: described discharge cavity (34) internal diameter Φ 23mm, discharge cavity (34) length 115mm.
6. a kind of high color development and high color temperature metallic halogen lamp according to claim 1 is characterized in that: described lamp holder (1) adopts inferior arc-welding mode to be connected with the bulb lead.
7. a kind of high color development and high color temperature metallic halogen lamp according to claim 1 is characterized in that: described lamp holder (1) and cell-shell (2) adopt mechanical connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101953790A CN101399158A (en) | 2008-10-14 | 2008-10-14 | High color development and high color temperature metallic halogen lamp |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101953790A CN101399158A (en) | 2008-10-14 | 2008-10-14 | High color development and high color temperature metallic halogen lamp |
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| CN101399158A true CN101399158A (en) | 2009-04-01 |
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| CNA2008101953790A Pending CN101399158A (en) | 2008-10-14 | 2008-10-14 | High color development and high color temperature metallic halogen lamp |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102437010A (en) * | 2011-11-27 | 2012-05-02 | 常州市凯凯照明电器有限公司 | High light efficiency roadway illumination high-pressure gas discharging lamp |
| CN102612207A (en) * | 2011-01-21 | 2012-07-25 | 东芝照明技术株式会社 | Lighting device and illumination device |
| CN103606498A (en) * | 2013-11-25 | 2014-02-26 | 辽宁爱华照明科技股份有限公司 | High pressure sodium lamp |
-
2008
- 2008-10-14 CN CNA2008101953790A patent/CN101399158A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102612207A (en) * | 2011-01-21 | 2012-07-25 | 东芝照明技术株式会社 | Lighting device and illumination device |
| CN102437010A (en) * | 2011-11-27 | 2012-05-02 | 常州市凯凯照明电器有限公司 | High light efficiency roadway illumination high-pressure gas discharging lamp |
| CN103606498A (en) * | 2013-11-25 | 2014-02-26 | 辽宁爱华照明科技股份有限公司 | High pressure sodium lamp |
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Open date: 20090401 |