CN2073165U - Rare earth fluorecent lamp bulb having long service cold catelectrode - Google Patents
Rare earth fluorecent lamp bulb having long service cold catelectrode Download PDFInfo
- Publication number
- CN2073165U CN2073165U CN 90217260 CN90217260U CN2073165U CN 2073165 U CN2073165 U CN 2073165U CN 90217260 CN90217260 CN 90217260 CN 90217260 U CN90217260 U CN 90217260U CN 2073165 U CN2073165 U CN 2073165U
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- China
- Prior art keywords
- tube
- long service
- metallic electrodes
- fluorescent
- rare earth
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model relates to a rare earth fluorescent lamp tube with long service cold catelectrodes, which is characterized in that the inner ends of a glass tube (1) adopt cylindrical and larger surface area metallic electrodes (2), the surface of the metallic electrodes is not provided with electronic powder, a mercury titanium belt (4) is arranged between the metallic electrode (2) and an electrode lead (6), For the metal electrodes (2) without electronic powder and under the bombardment of electrons and positive ions, the electric current density of the two metallic electrodes is small, radiating property is good, and self temperature rise is not high. In addition, the metallic electrodes (2) are relatively stable, the long time and stable emission of the metallic electrodes (2) can be maintained, and the long service lives of the metallic electrodes (2) can be realized. The process of the utility model is simpler than that of conventional lamp tubes, and the yield is high. The utility model is suitable for producing large power varieties, and the operation life of the rare earth fluorescent lamp tube with long service cold catelectrodes is more than 6 thousand hours.
Description
The utility model relates to a kind of discharge lamp, relates in particular to a kind of long-life cold cathode rare-earth fluorescent fluorescent tube.
Existing rare-earth fluorescent lamp tube electrode two ends all scribble the electronics powder, and the general life-span is 3,000 hours or 5,000 hours, and the former is domestic level, and the latter is a world level.This is because the electrode of conventional fluorescent tube is under the bombardment of high temperature and ion at work, its electronics powder is splatter gradually, also can consume gradually as the tungsten filament of core silk, and with recrystallization process, become fragile until fracture, emission current is descended, and internal resistance increases, simultaneously, the material that splashes down on glass-tube can cause glass-tube two ends blackout, the fluorescent material transparency descends, and for requiring long occasion of life-span, it is unfavorable to bring.To the manufacturing of high-power fluorescent tube, especially unfavorable.
The purpose of this utility model is intended to avoid above-mentioned deficiency of the prior art, and a kind of long-life cold cathode rare-earth fluorescent fluorescent tube is provided.
The purpose of this utility model can realize by following measure: it is characterized in that: the bigger metal electrode of cylindric surface area is adopted at two ends in the glass-tube, and its no electronics powder in surface is provided with mercury and titanium strip between metal electrode and the contact conductor.
The purpose of this utility model can also realize by following measure: it is characterized in that: metal electrode material can adopt stainless steel material to make, also can adopt nickel material to make, can also adopt molybdenum materials to make, the metal electrode shape except that make cylindric, can also make coniform.
Fig. 1 is the utility model structural representation.
Drawing explanation: glass-tube 1, metal electrode 2, triphosphor Fluorescent Powder 3, mercury and titanium strip 4 steam vents 5, contact conductor 6
The utility model is described in further detail below in conjunction with embodiment: because metal electrode 2 is the large tracts of land electrode cylindraceous of no electronics powder, so two metal electrodes 2 under the bombardment of electronics and cation, because of current density is little, thermal diffusivity is good first, and self temperature rise is not high; Second because of the easy unconsolidated material of splatter such as no electronics powder, metal electrode 2 itself is more stable, so after working long hours, electrode 2 materials evapotranspire very little, glass-tube 1 and fluorescent material are not had remarkable pollution, and metal electrode 2 can be kept stable emission for a long time, thereby reaches long-life purpose.Because fluorescent tube is no longer with the tungsten filament electrode that scribbles ternary oxide, but employing stainless steel material, be shaped as electrode 2 cylindraceous, when fluorescent tube is made, charge into argon gas or argon neon mixture, and provide mercury vapour by mercury and titanium strip 4, tube inner wall scribbles triphosphor Fluorescent Powder 3, so just constitute a cold cathode gas discharge tube, during work, gas ionization, make mercury ion produce ultraviolet ray, excitated fluorescent powder is luminous.
With 2D type 16W fluorescent tube is example: metal electrode 2 is selected stainless steel material for use, is shaped as cylindricly, and glass-tube 1 size is the same with conventional 16W glass-tube, the measured light flux is greater than 1050 lumens, ambient temperature is-10 ℃～40 ℃, working life 6000 hours, and light decay is less than 10%.
The utility model has following advantage compared to existing technology:
1. the long-life, lamp tube service life is more than 6000 hours.
2. the more conventional fluorescent tube of production technology is simple, the more conventional fluorescent tube height of qualification rate.
3. and in suitable the manufacturing, high-power (20～280 watts) serial new varieties.
Claims (3)
1, a kind of long-life cold cathode rare-earth fluorescent fluorescent tube, its glass-tube 1 inwall scribbles trichromatic rare-earth fluorescent light powder 3, pipe end respectively is provided with steam vent 5 and contact conductor 6, be filled with argon gas or argon neon mixture and mercury in the pipe, it is characterized in that: the bigger metal electrode of cylindric surface area 2 is adopted at two ends in the glass-tube 1, its no electronics powder in surface is provided with mercury and titanium strip 4 between metal electrode 2 and contact conductor 6.
2,, it is characterized in that cone shape metal electrode 2 also can be adopted in two ends in the glass-tube according to cold cathode rare-earth fluorescent fluorescent tube of described long-life of claim 1..
3, according to claim 1. or 2. described long-life cold cathode rare-earth fluorescent fluorescent tubes, it is characterized in that: metal electrode 2 adopts stainless steel material to make, and also can adopt nickel material to make, and can also adopt molybdenum materials to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90217260 CN2073165U (en) | 1990-08-03 | 1990-08-03 | Rare earth fluorecent lamp bulb having long service cold catelectrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90217260 CN2073165U (en) | 1990-08-03 | 1990-08-03 | Rare earth fluorecent lamp bulb having long service cold catelectrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2073165U true CN2073165U (en) | 1991-03-13 |
Family
ID=4896283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90217260 Withdrawn CN2073165U (en) | 1990-08-03 | 1990-08-03 | Rare earth fluorecent lamp bulb having long service cold catelectrode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2073165U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010105447A1 (en) * | 2009-03-20 | 2010-09-23 | Sun Dechun | Fluorescent lamp for livestock feed |
-
1990
- 1990-08-03 CN CN 90217260 patent/CN2073165U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010105447A1 (en) * | 2009-03-20 | 2010-09-23 | Sun Dechun | Fluorescent lamp for livestock feed |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |