CN100512589C - Sound resonant suppressing method for high strength gas discharging lamp - Google Patents
Sound resonant suppressing method for high strength gas discharging lamp Download PDFInfo
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- CN100512589C CN100512589C CNB031344739A CN03134473A CN100512589C CN 100512589 C CN100512589 C CN 100512589C CN B031344739 A CNB031344739 A CN B031344739A CN 03134473 A CN03134473 A CN 03134473A CN 100512589 C CN100512589 C CN 100512589C
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- lamp
- magnetic field
- arc
- acoustic resonance
- longitudinal magnetic
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000007599 discharging Methods 0.000 title 1
- 230000006698 induction Effects 0.000 claims 1
- 238000010891 electric arc Methods 0.000 description 20
- 230000005764 inhibitory process Effects 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 229910001507 metal halide Inorganic materials 0.000 description 2
- 150000005309 metal halides Chemical class 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
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- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
本发明提出了一种解决HID灯电弧“声谐振”的方法。采用纵向磁场的方法来抑制“声谐振”现象。在HID灯两端加上线圈并通过一定的电流，产生与灯电弧弧柱轴向一致的纵向磁场。当电流达到一定时，纵向磁场足够强，使得HID灯电弧的不稳定现象，即“声谐振”现象得到抑制和消除。这样可使电子镇流器结构简单，成本降低，体积减小，效率提高。
The invention proposes a method to solve the "acoustic resonance" of the arc of the HID lamp. The method of longitudinal magnetic field is used to suppress the "acoustic resonance" phenomenon. Coils are added to both ends of the HID lamp and a certain current is passed to generate a longitudinal magnetic field consistent with the axial direction of the arc column of the lamp. When the current reaches a certain level, the longitudinal magnetic field is strong enough to suppress and eliminate the unstable phenomenon of the arc of the HID lamp, that is, the phenomenon of "acoustic resonance". In this way, the structure of the electronic ballast is simple, the cost is reduced, the volume is reduced, and the efficiency is improved.
Description
Technical field
The invention belongs to technical field of electricity, relate to a kind of high-intensity gas discharge lamp acoustic resonance inhibition method.
Background technology
High-intensity gas discharge lamp (also High Intensity Discharge lamp is called for short the HID lamp) comprises that high-pressure sodium lamp, mercury lamp and metal halide lamp, its luminous efficiency and useful life are more than five times of incandescent lamp; Compare with fluorescent lamp, its volume is little, power is big, distribution controls is easy in lighting, so be widely used in lighting fields such as square, megastore, stadiums, process photography, also is widely used in lighting fields such as automobile lamp, projector lamp, rear-projection TV lamp.
Are inductance type ballasts with the matching used ballast great majority of HID lamp in the market, its shortcoming is that volume is big, heavy, power factor is low, loss is big.
Electric ballast has been widely used in field of fluorescent lamps, owing to adopted high-frequency power electronic devices, makes that the ballast volume reduces, weight saving, power factor improve, loss reduces greatly, and the fluorescent lamp luminous efficiency improves, and the life-span is elongated.
Electric ballast makes people expect the electric ballast technology is applied to HID lamp field in the successful Application of field of fluorescent lamps naturally.Yet high-frequency electronic ballast " acoustic resonance " phenomenon occurred when using on the HID lamp, promptly the electric arc wild effect has taken place when high-frequency work the HID lamp.When the HID lamp was operated in the 5kHz-200kHz frequency range, rising and falling tangible light output pulsation can appear and accompany by current/voltage in a lot of frequency ranges.Electric arc may extinguish under some frequency, even causes electric arc tube to burst.The electric arc wild effect of low power metal halide lamp is the most serious.
In order to make the electric ballast successful Application in HID lamp field, the researcher has done a large amount of work, as to adopt ellipse or two ends be the electric arc pipe shell of taper, and the electric ballast operating frequency is carried out frequency modulation(FM), select can steady running frequency window etc.But in the frequency range of 200kHz, still be difficult to overcome the obstacle that " acoustic resonance " brought from number kHz in frequency range.Its reason is that " acoustic resonance " frequency is very responsive to arc tube dimensions, even deviation is arranged slightly, " acoustic resonance " frequency also can produce significant change.Even to same lamp, difference also can produce appreciable impact to " acoustic resonance " frequency during the life-span.
The method of Recent study person's reply " acoustic resonance " can be divided three classes on the electric ballast operating frequency: the firstth, and operating frequency is far below " acoustic resonance " frequency, as low-frequency electronic rectifier with squre wave and dc electronic ballast such as 170Hz, 270Hz, 400Hz; The secondth, operating frequency is far above the frequency of " acoustic resonance ", as the high-frequency electronic ballast of 2.5MHz; The 3rd be operating frequency in the frequency range of " acoustic resonance ", adopt frequency modulation method to avoid " acoustic resonance ".Advantage when when the electric ballast underfrequency, being difficult to give full play to high frequency, the power consumption of power electronic device is big when the electric ballast frequency is too high, heating is serious, efficient reduces, and need adopt devices such as FM circuit even microprocessor that cost is improved when the electric ballast frequency is in the frequency range of " acoustic resonance ".
Summary of the invention
Order of the present invention is, a kind of high-intensity gas discharge lamp acoustic resonance inhibition method is provided, and adopts the method for longitudinal magnetic field to suppress " acoustic resonance " phenomenon.
The technical scheme that realizes the foregoing invention purpose is, add coil at the high-intensity gas discharge lamp two ends and pass through certain electric current, produce the longitudinal magnetic field consistent with lamp arc post axial direction, regulate longitudinal magnetic field intensity by size of current in the change coil, make the magnetic flux density value of electric arc longitudinal magnetic field at an arbitrary position be not less than Bmin (T)=4 * 10
-6* Iarc; Wherein, Iarc is a HID lamp arc current, and unit is A.
Coil can be positioned over the outside or the inside of lamp electric arc tube.Coil can be a permanent magnet, and the magnetic line of force direction that permanent magnet produces is consistent with lamp electric arc arc column axis direction, i.e. longitudinal magnetic field.
Can make lamp electric arc become stable when longitudinal magnetic field intensity reaches certain value, not occur " acoustic resonance " phenomenon when at this moment controlling with high-frequency electronic ballast, thereby make electric ballast simple in structure, cost reduces, and volume reduces, and efficient improves.
Description of drawings
Fig. 1 is a high-intensity gas discharge lamp acoustic resonance inhibition method schematic diagram of the present invention;
Fig. 2 is the magnetic field schematic diagram that method of the present invention produces.
Embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.
At first introduce principle of the present invention:
HID lamp electric arc is plasma.Can know that from the orbit theory of plasma physics charged particle charged particle exists Larmor to circle round magnetic field.In the electric arc arc column of longitudinal magnetic field, the charged particle that is come out by cathode emission will make the shape of arc column be parallel to the magnetic line of force around magnetic line of force rotation.When particle density is very big, can regard the electric arc arc column as fluid, use the magnetohydrodynamics theoretical description.After applying longitudinal magnetic field, electric current line in the electric arc tries hard to remain parallel to the magnetic line of force, when longitudinal magnetic field intensity reaches certain value, electric arc arc column shape remains unchanged, thereby the wild effect of electric arc can suppress with longitudinal magnetic field, even eliminate, this is that the present invention adopts the method for longitudinal magnetic field to suppress the principle of " acoustic resonance " phenomenon.
Suppressing HID lamp " acoustic resonance " phenomenon with the method for longitudinal magnetic field is a kind of new method, does not all have in document at home and abroad and the patent to occur.The schematic diagram of this method as shown in Figure 1.1-HID lamp electrode among the figure, 2-HID lamp electric arc, 3-HID lamp electric arc pipe shell, 4-coil.By certain alternating current or direct current, the sense of current is identical in the last lower coil, can produce magnetic field shown in Figure 2 in coil 4, because the magnetic line of force is axially consistent with electric arc arc column 2, so be called longitudinal magnetic field.When the longitudinal flux field intensity that produces when big by electric current in the coil 4, therefore can regulate longitudinal magnetic field intensity by changing in the coil 4 size of current.When reaching certain value, longitudinal magnetic field intensity can make lamp electric arc become stable.Magnetic flux density value in this recommendation is as follows: electric arc is not less than Bmin (T)=4e-6*Iarc at an arbitrary position.Iarc is a HID lamp arc current in the formula, and unit is A.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031344739A CN100512589C (en) | 2003-08-07 | 2003-08-07 | Sound resonant suppressing method for high strength gas discharging lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031344739A CN100512589C (en) | 2003-08-07 | 2003-08-07 | Sound resonant suppressing method for high strength gas discharging lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1474640A CN1474640A (en) | 2004-02-11 |
| CN100512589C true CN100512589C (en) | 2009-07-08 |
Family
ID=34154499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031344739A Expired - Fee Related CN100512589C (en) | 2003-08-07 | 2003-08-07 | Sound resonant suppressing method for high strength gas discharging lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100512589C (en) |
-
2003
- 2003-08-07 CN CNB031344739A patent/CN100512589C/en not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| 金属卤化物灯"声谐振"效应的研究. 杨正名，罗宗南，崔一平，钟原.灯与照明，第24卷第1期. 2000 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1474640A (en) | 2004-02-11 |
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Granted publication date: 20090708 Termination date: 20110807 |