CN2047067U - Small power dc gas discharge lamp - Google Patents
Small power dc gas discharge lamp Download PDFInfo
- Publication number
- CN2047067U CN2047067U CN 88207128 CN88207128U CN2047067U CN 2047067 U CN2047067 U CN 2047067U CN 88207128 CN88207128 CN 88207128 CN 88207128 U CN88207128 U CN 88207128U CN 2047067 U CN2047067 U CN 2047067U
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- glass
- tube
- discharge lamp
- inert gas
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Abstract
The utility model discloses a DC gas discharge lamp with small power, which can use a nine-volt DC power supply, and the power is provided with 1W, 2.5W, 3W, 4W, etc. The DC gas discharge lamp with small power is composed of a glass tube whose inner wall is coated with fluorescent powders and two electric poles which are composed of a mercury piece and an inner lead wire which are directly connected, the inflation pressure of inert gas is 200-250. The utility model has the advantages of high light efficiency, good focus point, long service life and convenient carrying, and can be used in dusty places; besides, the utility model is suitable for mine underground working and is an ideal light fitting for underground flowing working, and can be also used for field operation and other lightings.
Description
The utility model is a kind of small-power direct current gaseous discharge lamp, is mainly used in coal mine operation, and field work and metallurgy industry also can be used for exploration illumination or family's emergency lighting etc.This gaseous discharge lamp uses DC power supply, and its structure mainly comprises: a glass-tube, inert gas and two electrodes that structure is identical are arranged in the glass-tube, and the glass-tube inwall scribbles fluorescent material; Between DC power supply and lamp tube electrode, a transistor converter is arranged, can change direct current into high-frequency electrical.
In the prior art, under the coal mine on the safety of workers cap employed illuminations be commonly inky bubble, adopt DC power supply, the small filament lamp bubble uses as the down-hole light source many shortcomings; Light efficiency is low, and power loss is big, and the life-span is short, and is not shockproof.The light efficiency of fluorescent lamp is five times of ordinary incandescent lamp, but does not also have at present a kind of small-power fluorescent lamp of desirable use DC power supply to be applicable to underground work.Therefore, the purpose of this utility model just is to overcome the shortcoming of inky bubble as the down-hole light source, provide a kind of adopt DC power supply power below 5 watts and the very little gaseous discharge lamp of volume be fluorescent lamp, to adapt to the needs of underground work.
Accompanying drawing 1 is the lamp tube structure schematic diagram of a kind of gaseous discharge lamp of providing of the utility model.
Accompanying drawing 2 is lamp tube structure schematic diagrames of the another kind of gaseous discharge lamp that provides of the utility model.
Accompanying drawing 3 is circuit diagrams of the transistor current transducer that provides of the utility model.
Shown in accompanying drawing 1 or accompanying drawing 2, gaseous discharge lamp described in the utility model has a glass-tube 1, and inert gas and two electrodes that structure is identical are arranged in the glass-tube, scribbles phosphor powder on the glass-tube inwall.The blowing pressure of inert gas is the 200-250 holder, and mercury sheet 2 directly links to each other with inside conductor 3 and constitutes electrode.
As shown in Figure 1, two electrodes of this kind discharge lamp are located at the same end of glass-tube, and the diameter of glass-tube is 20～25 millimeters, 25～40 millimeters of length; There is a dividing plate 4 that two electrodes are separated in the glass-tube, the height of dividing plate should be more than 2/3rds of glass-tube length, the effect of dividing plate mainly is to prevent that the mercury cathode electrons emitted from directly being absorbed by another electrode, makes electronics that the motion of longer distance be arranged in glass-tube.
As shown in Figure 2, two electrodes of this kind discharge lamp are located at the two ends in the glass-tube respectively, and glass-tube length is 70～80 millimeters, and diameter is 12～15 millimeters.For this kind discharge lamp, can on glass-tube, leave a transparent slit 5, and on the glass-tube inwall, except that one deck phosphor powder is arranged, also scribble one deck light reflecting material, such as titanium dioxide or silicon dioxide etc.Light after the reflector is repeatedly reflected, is concentrated ejaculation by transparent slit 5 in glass-tube like this, can reach very high brightness and focus point.
In order to make above-mentioned discharge lamp operate as normal, between DC power supply and fluorescent tube the two poles of the earth, a transistor current transducer should be arranged, making the electric current that acts on the fluorescent tube is high frequency voltage.The basic circuit of current converter provided by the utility model as shown in Figure 3.Transistor converter is mainly by work winding W1, and vibration winding W2 feeds back winding W3, variable resistor R
1, resistance R
2, capacitor C and triode BG form.
As shown in Figure 3, after DC power supply is connected, just have electric current to pass through between the base stage of triode BG and the emitter, triode is conducting, just has big electric current to pass through between collector electrode and the emitter, and electrical power storage is in vibration winding W2.On the other hand, close through the lotus root of W2 and W3, produce induced potential in W3, under this induced potential effect, transistor BG ends, thus the energy that is stored among the W2 emit, make the discharge of the mercury sheet on the electrode in the fluorescent tube, discharge lamp is promptly lighted like this.
But small-power direct current gaseous discharge lamp working voltage is 9 volts a DC power supply, and power has 1W, 2.5W, 3W, 4W etc., and watt level can be controlled by resistance.
Inert gas in the small-power direct current gaseous discharge lamp fluorescent tube can be an argon gas.
The direct current small-power fluorescent lamp that the utility model provides is compared with the white bulb of small-power, the characteristics such as have power saving, light efficiency height, light is soft, shock resistance good and the life-span is long. Comparing with other fluorescent lamp, have that volume is little, cost is low, carry the advantages such as easy for installation, be contained on coal mine operation workman's the safety cap, is the desirable lighting of down-hole mobile operational process. This discharge light is logical can to reach 28～30 lumens, and the life-span can reach 9000 hours, compares with the Xiao Bai lamp, and the service efficiency of dc source can improve about 50%.
Claims (4)
1, a kind of small-power direct current gaseous discharge lamp, a glass-tube 1 is arranged, inert gas and two electrodes that structure is identical are arranged in the glass-tube, scribble fluorescent material on the glass-tube inwall, a transistor converter changes direct current into high frequency voltage, it is characterized in that: the blowing pressure of inert gas is 200～250 holders in the glass-tube, and mercury sheet 2 directly links to each other with inside conductor 3 and constitutes electrode; Transistor converter is by work winding W1, vibration winding W2, and feedback winding W3, variable resistor R1, resistance R 2, capacitor C and triode BG form; Two electrodes are located at the same end of glass-tube, and the diameter of glass-tube is 20～25 millimeters, and length is 25～40 millimeters, have a dividing plate 4 that two electrodes are separated in the glass-tube, and the height of dividing plate should be more than 2/3rds of glass-tube length.
2, a kind of small-power direct current gaseous discharge lamp, a glass-tube 1 is arranged, inert gas and two electrodes that structure is identical are arranged in the glass-tube, scribble fluorescent material on the glass-tube inwall, a transistor converter changes direct current into high frequency voltage, it is characterized in that: the blowing pressure of inert gas is 200～250 holders in the glass-tube, and mercury sheet 2 directly links to each other with inside conductor 3 and constitutes electrode; Transistor converter is by work winding W1, swings winding W2, feedback winding W3, and variable resistor R1, resistance R 2, capacitor C and triode BG form; Glass-tube length is 70～80 millimeters, and diameter is 12～15 millimeters, and two electrodes are located at the two ends of glass-tube respectively.
3, by the described gaseous discharge lamp of claim 2, it is characterized in that: leave a transparent slit 5 on the glass-tube, and except that layer of fluorescent powder is arranged, also scribble one deck light reflecting material at the glass-tube inwall.
4, by claim 1 or 2 described gaseous discharge lamps, it is characterized in that: the inert gas in the glass-tube is an argon gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88207128 CN2047067U (en) | 1988-06-14 | 1988-06-14 | Small power dc gas discharge lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88207128 CN2047067U (en) | 1988-06-14 | 1988-06-14 | Small power dc gas discharge lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2047067U true CN2047067U (en) | 1989-11-01 |
Family
ID=4841195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88207128 Withdrawn CN2047067U (en) | 1988-06-14 | 1988-06-14 | Small power dc gas discharge lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2047067U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100452939C (en) * | 2002-10-09 | 2009-01-14 | 优志旺电机株式会社 | Lighting device for high-tension discharge lamp |
-
1988
- 1988-06-14 CN CN 88207128 patent/CN2047067U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100452939C (en) * | 2002-10-09 | 2009-01-14 | 优志旺电机株式会社 | Lighting device for high-tension discharge lamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |