CN1203438A - DC fluorescent lamp for lighting in passenger train - Google Patents
DC fluorescent lamp for lighting in passenger train Download PDFInfo
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- CN1203438A CN1203438A CN 98110306 CN98110306A CN1203438A CN 1203438 A CN1203438 A CN 1203438A CN 98110306 CN98110306 CN 98110306 CN 98110306 A CN98110306 A CN 98110306A CN 1203438 A CN1203438 A CN 1203438A
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Abstract
A DC fluorescent lamp for lighting in passenger train uses 36-65 V DC power supply, and features that its anode is specially designed, slightly more mixture of Hg with A and Kr gases is filled in its tube, and its 20-W control circuit based on existing 15-W one is composed of automatic electronic starter undervoltage inverter circuit, protecting circuit, DC current-stabilizing circuit and additional PWM step-up circuit. Its advantages are simple structure, long service life, no stroboflash and electromagnetic interference, and wide voltage range.
Description
A kind of DC fluorescent lamp for lighting in passenger train belongs to the electric lighting device technical field, is mainly used in passenger train compartment intraoral illumination, especially is the passenger vehicle illumination of power supply with the 36-65V direct current.
Lighting in passenger train generally is to use the converter type fluorescent lamp in the prior art.It is to be added on the fluorescent tube after the DC power supply on the train is reverse into the high frequency alternating current of tens of kilo hertz (as 33KHZ), because high-frequency and high-voltage starts, the filament pre-heating of fluorescent lamp is insufficient, impairs fluorescent tube and inverter, and shortened their useful life.The high frequency radiation that simultaneously inverter produced can be disturbed the broadcasting, communication of the railway system etc.The inventor invents and obtained patent right in 1991 by the application of the former unit one belongs to of inventor, the patent No. 88102003.6, name is called the patent of invention of " a kind of DC fluorescent lamp device ", though solved existing problem in the above-mentioned prior art fully, but the adaptation voltage range of finding the patented product in the actual use after enforcement is narrower, only can operate as normal in the ministry standard direct voltage 44V-60V scope of Ministry of Railways regulation, fluorescent tube arc extinguishing (light-off) when voltage is lower than 44V, this is unallowed in railway transportation.But also have the supply power voltage of considerable rolling stock section not reach the ministry standard of the Ministry of Railways in present China, the low terminal voltage that has even be lower than 36V.Obviously can't use in these No. 88102003.6 patented technologies of power supply rolling stock section, so applying of this patented technology is subjected to certain limitation.
The object of the present invention is to provide a kind of simple in structure that No. 88102003.6 patent had that both kept, no electromagnetic interference, life-span is long, no stroboscopics etc. are advantages all, the easily startup and the DC fluorescent lamp for lighting in passenger train of arc extinguishing not of DC fluorescent lamp pipe in the time of changing in supply power voltage 36V-65V scope again.
According to the basic principle of fluorescent lighting and the present situation of domestic and international lighting in passenger train, at the subject matter that exists in the prior art, basic design of the present invention is: fluorescent tube is keeping on glass bulb, negative electrode (filament) and all identical with the known alternating-current fluorescent lamp pipe basis of fluorescent material, anode is made into, be bent into circular or oval-shaped closed-loop and it is welded on the anode stem stem lead-in wire with the titanium mercurial band that scribbles mercury absorbing material, thereby make the DC fluorescent lamp pipe into; After being pumped into vacuum, fluorescent tube charges into simultaneously the mercury of slightly Duo and argon, krypton mist again, so that the ratio of argon, krypton of regulating is avoided generation " electrophoresis " phenomenon than the effective amount of alternating-current fluorescent lamp; Controller then is divided into the protective circuit 3 of protective circuit 1 of being used for by the under-voltage inverter circuit 1 of the automatic starter of electronics, direct current current stabilization control circuit 2 with when circuit zero load or filament break of two kinds of 15W and 20W: 15W and forms, like this when supply voltage is in 44V-65V, circuit 1 vibration, the low pressure preheating filament of output, high pressure is added in starter on the fluorescent tube anode; Circuit 2 control lamp currents are maintained at about on the 355mA constant, and fluorescent tube is in normal direct current and lights state, and the collector voltage of the triode in the circuit 2 raises and closes starting circuit 1 immediately simultaneously; Automatically enter inverter mode when supply voltage is lower than 44V circuit 1, though and when guaranteeing that supply voltage is low to moderate 30V the brightness fluorescent tube that descends to some extent still do not extinguish; 20W's is on the basis of above-mentioned 15W, the parameter of resistance in the proper transformation circuit 2, setting up one between circuit 1 and the power supply when DC power supply voltage is lower than 56V again, its pulse-width modulation integrated package can boost to the pulse width modulation boost circuit 4 of 56V with assurance fluorescent tube normal ignition automatically, thereby realizes goal of the invention.
DC fluorescent lamp for lighting in passenger train of the present invention comprises by the anode 10 that is positioned at tube glass shell 11 1 ends and stem stem thereof lead-in wire 9 and is positioned at filament (negative electrode) 12 and the cathode leg 13 of glass bulb 11 other ends and is distributed on fluorescent tube 8 that the fluorescent material 14 on glass bulb 11 inwalls formed and the controller two large divisions who is made up of resistance 5, diode 6, triode 7, electric capacity 15, transformer 16, coil 17 and pulse-width modulation integrated package 18; It is characterized in that this fluorescent lamp, anodes 10 in its above-mentioned fluorescent tube 8 are to be bent into circle or the elliptical closed boxing is connected on the above-mentioned anode stem stem lead-in wire 9 with the titanium mercurial band that scribbles mercury absorbing material on it, and also are filled with than mercury and argon krypton mist slightly many in the alternating-current fluorescent lamp pipe after being pumped into vacuum in the glass bulb 11; Above-mentioned controller comprise 15W with two kinds of 20W, the protective circuit 3 that the former connects above-mentioned tube filament 12 by the under-voltage inverter circuit 1 of the automatic starter of electronics and termination circuit 1 other end of another termination fluorescent tube anode 10 of a termination power and by the R in the above-mentioned resistance 5
4Constitute with the direct current current stabilization control circuit 2 that above-mentioned circuit 1 is connected with 3; The controller of 20W then is on the basis of above-mentioned 15W controller, and increasing between circuit of stating thereon 1 and the power supply with pulse-width modulation integrated package 18 is pulse width modulation boost circuit 4 formations at center again.
The above-mentioned under-voltage inverter circuit 1 of the automatic starter of 15W controller electronics by above-mentioned transformer 16 and respectively with electric capacity 15 that its primary and secondary is connected in C
3-4, and on its emitter, connect D in the above-mentioned diode 6
5And the C in the electric capacity 15
1 Triode 7 in GB
2Form; Above-mentioned dc steady flow circuit 2 is connected R in the above-mentioned resistance 5 respectively by its base stage and emitter
1And R
3-5, the D in the diode 6
1-2 Triode 7 in GB
1Form; Above-mentioned protective circuit 3 is by the D in the above-mentioned diode 6
3-4And the C in the electric capacity 5
5Form; Outside resistance value is adjusted slightly in circuit 1～3 dividing circuit 2 of above-mentioned 20W controller, all the other are all with the circuit 1～3 of above-mentioned 15W controller, above-mentioned pulse width modulation boost circuit 4 then by above-mentioned pulse-width modulation integrated package 18 and respectively with electric capacity 15 that its each pin links to each other in C
4-7, the R in the resistance 5
10-18, the D in the diode 6
6And D
8-10, the GB in the triode 7
3-4And coil 17 is formed.
The argon, the krypton mist that are filled in the above-mentioned fluorescent tube 8, wherein argon (by volume) accounts for 50-75%, and krypton accounts for 25-50%, and argon, krypton-85 gas total pressure are 300-500Pa.
Outstanding advantage of the present invention is both all to have kept simple in structure that patent formerly has, no electromagnetic interference, long service life, no stroboscopics etc. are advantage all, the DC fluorescent lamp pipe easily starts in the time of changing in supply power voltage 36V-65V scope again, and arc extinguishing does not produce electrophoresis, range of application is wider, can solve all rolling stock section's passenger vehicle lighting problems.
Accompanying drawing 1 is one of most preferred embodiment of the present invention DC fluorescent lamp tubular construction schematic diagram;
Accompanying drawing 2 is one of most preferred embodiment of the present invention 15W controller circuitry figure;
Accompanying drawing 3 is one of most preferred embodiment of the present invention 20W controller circuitry figure.
Further describe architectural feature of the present invention as follows with most preferred embodiment in conjunction with the accompanying drawings: an end is equipped with thick 0.4mm in the glass bulb 11 of fluorescent tube 8, wide 6mm, long 60mm and scribble the titanium mercurial band circumflexion ring of mercury absorbing material on it after be welded on anode 10 on its stem stem lead-in wire 9, the other end then is equipped with filament 12 and cathode leg 13, uniform fluorescent material 14 on glass bulb 11 inwalls installs the mist of the total pressure 400Pa of the argon that is filled with in the back cover that is evacuated than the mercury of slightly Duoing in the known alternating-current fluorescent lamp pipe and 65%, 35% krypton; Its controller is then by according to as shown in Figure 2 circuit, promptly by the D in the 1N4007 type diode 6
7C with 10 μ/100V in the electric capacity 15
2Connect the 36-65v DC power supply by elementary 0.01 the C that connects in the electric capacity 15
3Secondary 0.01 the C that connects in fluorescent tube 8 and the electric capacity 15
4Transformer 16 and the emitter D that meets 1N4007 in the diode 6 thereof
5C with 10 μ/50V in the electric capacity 15
1Triode 7 in the GB of BU406
2The automatic starter of the electronics of being formed is under-voltage inverter circuit 1, and the filament 12 of above-mentioned circuit 1 another termination fluorescent tube 8 of a termination is by the D of 1N4148 type in the diode 6
4With 18V voltage-stabiliser tube D
3With 0.1 C in the electric capacity 15
5Protective circuit of being formed 3 and the R that passes through 1K in the resistance 5
4Be connected with 3 by 300 R in the connecting resistance on its base stage 5 with circuit 1
3With the D that is 1N4007 in the diode 6
1-2, the R of 1.7 Ω in the connecting resistance 5 on the emitter
1Triode 7 in the GB of 3DD15D type
1The controller of the 15W that the direct current current stabilization control circuit of being formed constitutes.When by direct current 357mA, it is 42 ± 2V that the fluorescent tube pipe is pressed.
Two of most preferred embodiment is that the fluorescent tube in one of fluorescent tube 8 and most preferred embodiment is identical, and controller is pressed circuit shown in the accompanying drawing 3 and installed, promptly only the resistance R of 1.7 Ω in the circuit 2
1Change the R of 1.5 Ω into
6, all the other are all with the circuit 1～3 of 15W, and only needing to increase between circuit 1 and power supply with 494 type pulse-width modulation integrated packages 18 in addition be center and the R that is connected in 5.1K in the resistance 5 on its each pin respectively again
10, 2.7K R
11, 8.2K R
12, 7.5K R
13, 18K R
14, 12K R
15, 3.6K R
16, 16K1/4W R
17With 300 R
18, the D of 1N4007 type in the diode 6
6, voltage-stabiliser tube D 12V and 43V
8And D
9D with the FR302 type
10, the GB of 13003 types in the triode 7
3GB with the BU406 type
4, the C of 47 μ in the electric capacity 15
4, 2700P C
5, 0.1 C
6C with 10 μ
7And the pulse width modulation boost circuit 4 formed of coil 17 is promptly made the controller of 20W.
Change as present embodiment:
1, the size of fluorescent tube anode material can suitably change, and its shape can change ellipse into;
2, shared ratio and the total pressure of argon, krypton mist argon and krypton that is filled in the fluorescent tube, variation that can the DC tube pressure drop each at argon 50-75%, adjust in krypton 25-50% and the 300-500Pa scope;
3, each circuit and electronic component thereof all can be done the equivalence replacement, especially are connected on the resistance R on the pulse-width modulation integrated package pin 1-8
11-15Resistance should suitably change with the model of this integrated package;
4, at circuit 2 triode GB
1Emitter and diode D5 between also can install the resistance R of a 100/8W or 100/3W again additional
2Or R
7, at the triode GB of the controller circuitry 1 of 15W
2Base stage on also can add a 1N4007 type diode D again
6
Claims (3)
1, a kind of DC fluorescent lamp for lighting in passenger train comprises by the anode that is positioned at tube glass shell [11] one ends [10] and stem stem thereof lead-in wire [9] and is positioned at the filament [12] and the cathode leg [13] of glass bulb [11] other end and is distributed on fluorescent tube [8] that the fluorescent material [14] on glass bulb [11] inwall formed and the controller two large divisions who is made up of resistance [5], diode [6], triode [7], electric capacity [15], transformer [16], coil [17] and pulse-width modulation integrated package [18]; It is characterized in that this fluorescent lamp, anode [10] in its above-mentioned fluorescent tube [8] is to be bent into circle or the elliptical closed boxing is connected on the above-mentioned anode stem stem lead-in wire [9] with the titanium mercurial band that scribbles mercury absorbing material on it, and also is filled with than mercury and argon krypton mist slightly many in the alternating-current fluorescent lamp pipe after being pumped into vacuum in the glass bulb [11]; Above-mentioned controller comprise 15W with two kinds of 20W, the protective circuit [3] that the former connects above-mentioned tube filament [12] by the under-voltage inverter circuit of the automatic starter of electronics [1] and a termination circuit [1] other end of another termination fluorescent tube anode [10] of a termination power and by the R in the above-mentioned resistance [5]
4Constitute with the direct current current stabilization control circuit [2] that above-mentioned circuit [1] is connected with [3]; The controller of 20W then is on the basis of above-mentioned 15W controller, and increasing between circuit of stating thereon [1] and the power supply with pulse-width modulation integrated package [18] is pulse width modulation boost circuit [4] formation at center again.
2, DC fluorescent lamp for lighting in passenger train according to claim 1 is characterized in that the above-mentioned under-voltage inverter circuit of the automatic starter of 15W controller electronics [1] is by the C in above-mentioned transformer [16] and the electric capacity [15] that is connected with its primary and secondary respectively
3-4, and on its emitter, connect D in the above-mentioned diode [6]
5And the C in the electric capacity [15]
1Triode [7] in GB
2Form; Above-mentioned dc steady flow circuit [2] is connected R in the above-mentioned resistance [5] respectively by its base stage and emitter
1And R
3-5, the D in the diode [6]
1-2Triode [7] in GB
1Form; Above-mentioned protective circuit [3] is by the D in the above-mentioned diode [6]
3-4And the C in the electric capacity [5]
5Form; Outside resistance value is adjusted slightly in the circuit [1] of above-mentioned 20W controller～[3] dividing circuit [2], all the other are all with circuit [1]～[3] of above-mentioned 15W controller, above-mentioned pulse width modulation boost circuit [4] then by above-mentioned pulse-width modulation integrated package [18] and respectively with electric capacity [15] that its each pin links to each other in C
4-7, the R in the resistance [5]
10-18, the D in the diode [6]
6And D
8-10, the GB in the triode [7]
3-4And coil [17] is formed.
3, DC fluorescent lamp for lighting in passenger train according to claim 1 is characterized in that interior argon, the krypton mist that is filled of above-mentioned fluorescent tube [8], and wherein argon accounts for 50-75%, and krypton accounts for 25-50%, and argon, krypton-85 gas total pressure are 300-500Pa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98110306A CN1057637C (en) | 1998-06-19 | 1998-06-19 | DC fluorescent lamp for lighting in passenger train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98110306A CN1057637C (en) | 1998-06-19 | 1998-06-19 | DC fluorescent lamp for lighting in passenger train |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1203438A true CN1203438A (en) | 1998-12-30 |
| CN1057637C CN1057637C (en) | 2000-10-18 |
Family
ID=5220367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98110306A Expired - Fee Related CN1057637C (en) | 1998-06-19 | 1998-06-19 | DC fluorescent lamp for lighting in passenger train |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1057637C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002027758A1 (en) * | 2000-08-08 | 2002-04-04 | Xihu Yu | A method of completely eliminating electrophoresis effect in a dc fluorescent lamp tube |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85202313U (en) * | 1985-06-15 | 1986-08-06 | 许中定 | Electronic controller for raising optical efficiency of fluorescent lamp |
| CN1013166B (en) * | 1988-04-08 | 1991-07-10 | 青岛海洋大学 | Dc fluorescent lamp device |
-
1998
- 1998-06-19 CN CN98110306A patent/CN1057637C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002027758A1 (en) * | 2000-08-08 | 2002-04-04 | Xihu Yu | A method of completely eliminating electrophoresis effect in a dc fluorescent lamp tube |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1057637C (en) | 2000-10-18 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |