CN101436507A - Metal halogenate lamp started with low impulse voltage - Google Patents
Metal halogenate lamp started with low impulse voltage Download PDFInfo
- Publication number
- CN101436507A CN101436507A CNA2008102078109A CN200810207810A CN101436507A CN 101436507 A CN101436507 A CN 101436507A CN A2008102078109 A CNA2008102078109 A CN A2008102078109A CN 200810207810 A CN200810207810 A CN 200810207810A CN 101436507 A CN101436507 A CN 101436507A
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- electric arc
- arc tube
- electrode
- stem
- metal halide
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Abstract
The invention discloses a metal halide lamp started at low-pulse voltage, which comprises an electric arc tube and two core column electrodes, wherein two ends of the electric arc tube are provided with a pair of main electrodes which are connected with the two core column electrodes respectively; the electric arc tube also comprises a pair of auxiliary electrodes inside; the pair of auxiliary electrodes is also connected with the two core column electrodes respectively; and the main electrode and the auxiliary electrode which are positioned at the same end of the electric arc tube are adjacent to each other and are connected with different core column electrodes respectively. By adopting a design of double auxiliary electrodes, the metal halide lamp can lower starting voltage, effectively reduce the damage to the electrodes when the lamp is started, can be favorable for protecting electrical devices in a system, and prolong the life span of the lamp.
Description
Technical field
The invention belongs to a kind of high intensity discharge metal halide lamp.
Background technology
Metal halide lamp obtains increasingly extensive application because of having excellent photoelectric characteristic, but because of halid charging into needs higher starting resistor, influence the useful life of lamp, the puncture voltage of general gas discharge metal halide lamp is wanted 2-3KV, bigger to the electrode infringement, simultaneously the electric device in the system also there is injury, therefore is necessary existing metal halide lamp is improved.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of metal halide lamp that can start with lower pulse voltage.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme: a kind of metal halide lamp started at low-pulse voltage, comprise electric arc tube and two stem stem electrodes, the two ends of electric arc tube are provided with a pair of main electrode and are connected with two stem stem electrodes respectively, also comprise a pair of auxiliary electrode in the electric arc tube, this a pair of auxiliary electrode also is connected with two stem stem electrodes respectively, and the main electrode that is positioned at the same end of electric arc tube is contiguous mutually with auxiliary electrode and be connected with different stem stem electrode respectively.
The invention has the beneficial effects as follows that the discharge that utilizes the internal field between main electrode and auxiliary electrode to cause realizes two punctures between main discharge electrode smoothly owing to adopted two auxiliary electrode designs startup stage of lamp.Thereby the reduction starting resistor to the infringement of electrode, and can help electric device in the protection system in the time of not only can effectively reducing lamp and start, and prolongs the useful life of lamp.
Preferably, be connected with resistance between described auxiliary electrode and the stem stem electrode.
Preferably, described electric arc tube is made by quartz glass.
Preferably, be filled with Ar, Kr in the described electric arc tube
85Mist.Electric arc tube contains Kr
85, can reduce puncture voltage effectively.
Preferably, be filled with Ar, Ne mist in the described electric arc tube.
Further, wherein the shared volume ratio of Ne gas is 95-99.5%, and the shared volume ratio of Ar gas is 0.5-5%.
Description of drawings
Fig. 1 is the structural representation of metal halide lamp started at low-pulse voltage of the present invention.
Fig. 2 is the structural representation of metal halide lamp electric arc tube of the present invention.
Embodiment
As shown in Figure 2, the two ends of electric arc tube 2 are provided with a pair of main electrode 21,22 and a pair of auxiliary electrode 23,24, the main electrode 21 that is positioned at electric arc tube one end is contiguous mutually with auxiliary electrode 23 but do not contact, and the main electrode 22 that is positioned at the electric arc tube other end is close to mutually with auxiliary electrode 24 but is not contacted.Electric arc tube 2 adds bipolar electrode according to conventional preparation method by quartz glass after overmolding, charge into Ar, Kr in the electric arc tube
85Mist; Perhaps charge into Ne, Ar mist, wherein preferred volume ratio is Ne gas: 95-99.5%, Ar gas: 0.5-5%.And add an amount of Hg, ScI3, NaI, ThI4, sealed at both ends making.Electric arc tube need spray AL
2O
3The coating of powder.
As shown in Figure 1, the two ends of electric arc tube 2 are fixed in the outer glass bulb (not shown) by support 4 and static line.Fix two stem stem electrodes 11,12 on the stem stem 1, the main electrode 21 of electric arc tube left end is connected with stem stem electrode 11, and auxiliary electrode 23 is connected with stem stem electrode 12 by resistance 3; The main electrode 22 of electric arc tube right-hand member is connected with stem stem electrode 12, and 24 of auxiliary electrodes are connected with stem stem electrode 11 by another one resistance.Select the getter of burn-oning in the outer glass bulb, so that reduce the foreign gas concentration in the outer glass bulb, outer glass bulb blanketing gas is 99.9% nitrogen, adds 0.1% oxygen a little, be used for eliminating the impurity in the system lamp process, an end of outer glass bulb is installed lamp holder and is user-friendly to.
Adopt the metal halide lamp (power all is 400W) of different electric arc tube electrode configurations, compare test, can obtain the result of following table:
| No auxiliary electrode | Single auxiliary electrode | Two auxiliary electrodes | |
| Starting resistor (V) (brand-new lamp) | 2000 | 500 | 300 |
| Starting resistor (V) (having used 1000 hours lamp) | 2500 | 1500 | 750 |
By above-mentioned experimental result also as can be seen, the present invention adopts two auxiliary electrodes, has the effect of significant reduction starting resistor.
Claims (6)
1. metal halide lamp started at low-pulse voltage, comprise electric arc tube and two stem stem electrodes, the two ends of electric arc tube are provided with a pair of main electrode and are connected with two stem stem electrodes respectively, it is characterized in that: also comprise a pair of auxiliary electrode in the electric arc tube, this a pair of auxiliary electrode also is connected with two stem stem electrodes respectively, and the main electrode that is positioned at the same end of electric arc tube is contiguous mutually with auxiliary electrode and be connected with different stem stem electrode respectively.
2. metal halide lamp started at low-pulse voltage according to claim 1 is characterized in that: be connected with resistance between described auxiliary electrode and the stem stem electrode.
3. metal halide lamp started at low-pulse voltage according to claim 1 is characterized in that: described electric arc tube is made by quartz glass.
4. metal halide lamp started at low-pulse voltage according to claim 1 is characterized in that: be filled with Ar, Kr in the described electric arc tube
85Mist.
5. metal halide lamp started at low-pulse voltage according to claim 1 is characterized in that: be filled with Ar, Ne mist in the described electric arc tube.
6. metal halide lamp started at low-pulse voltage according to claim 5 is characterized in that: wherein the shared volume ratio of Ne gas is 95-99.5%, and the shared volume ratio of Ar gas is 0.5-5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102078109A CN101436507A (en) | 2008-12-25 | 2008-12-25 | Metal halogenate lamp started with low impulse voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102078109A CN101436507A (en) | 2008-12-25 | 2008-12-25 | Metal halogenate lamp started with low impulse voltage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101436507A true CN101436507A (en) | 2009-05-20 |
Family
ID=40710883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008102078109A Pending CN101436507A (en) | 2008-12-25 | 2008-12-25 | Metal halogenate lamp started with low impulse voltage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101436507A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103489747A (en) * | 2012-06-13 | 2014-01-01 | 普罗斯电器（中国）有限公司 | Self-triggering type metal halide lamp |
-
2008
- 2008-12-25 CN CNA2008102078109A patent/CN101436507A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103489747A (en) * | 2012-06-13 | 2014-01-01 | 普罗斯电器（中国）有限公司 | Self-triggering type metal halide lamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20090520 |