CN202564172U - Cold cathode gas discharge lamp - Google Patents
Cold cathode gas discharge lamp Download PDFInfo
- Publication number
- CN202564172U CN202564172U CN201220102827XU CN201220102827U CN202564172U CN 202564172 U CN202564172 U CN 202564172U CN 201220102827X U CN201220102827X U CN 201220102827XU CN 201220102827 U CN201220102827 U CN 201220102827U CN 202564172 U CN202564172 U CN 202564172U
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- gas discharge
- cathode gas
- lamp tube
- discharge lamp
- electrode
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Abstract
The utility model aims to provide a cold cathode gas discharge lamp. The cold cathode gas discharge lamp comprises an electrode, a transparent lamp tube which is fine and long, and a fluorescent powder layer which is coated on an inner wall of the transparent lamp tube, wherein the electrode is arranged at an outer side of an end portion of the transparent lamp tube. The cold cathode gas discharge lamp is advantaged in that current breakdown of a casing of the transparent lamp tube does not occur easily; and the lamp has a relatively strong output power and very long service life.
Description
Technical field
The utility model relates to a kind of cold-cathode gas discharge lamp.
Background technology
Gaseous discharge lamp is by the commingle discharging of gas, metal vapors or several kinds of gas and metal vapors and alight.Convert electrical energy into a kind of electric light source of light through gas discharge.The kind of gas discharge is a lot, and what use morely is glow discharge and arc discharge (seeing arc discharge).Glow discharge generally is used for neon light and indicator light.Arc discharge can have very strong light output, and lighting source all adopts arc discharge.Fluorescent lamp, high-pressure mercury lamp, sodium vapor lamp and metal halide lamp are to use maximum illuminations to use gaseous discharge lamp.
The cold-cathode gas discharge lamp as a kind of fluorescent lamp because of its luminous intensity high, luminous evenly and fluorescent tube characteristics such as can do superfinely, in fields such as LCD, scanner, automobile instrument panel and picture frame making, obtained extensive application at present.Under normal conditions, it is a kind of miniature intense light source of novelty as the background light source of the said goods.And along with the application of cold-cathode fluorescence lamp is more and more wider, people require to provide working life longer, and power output is bigger, that is the higher cold-cathode fluorescence lamp of luminosity.The cold-cathode gas discharge lamp is as ultra-violet lamp, and people require also to provide that working life is longer, power output is bigger and make and be easy to lamp.
Existing external electrode formula cold-cathode gas discharge lamp adopts glass lamp; Because glass contains different materials such as boron oxide, aluminium oxide and has different dielectric coefficients, its surface capacitance skewness is after the fluorescent tube energising; Electric current forms in weak link easily and punctures, and causes the damage of fluorescent tube.
The utility model content
To the above-mentioned deficiency of prior art, the utility model aims to provide a kind of cold-cathode gas discharge lamp, comprising:
Electrode;
Transparent lamp tube, said Transparent lamp tube are elongated shape; And
Phosphor powder layer is coated the inwall of said Transparent lamp tube;
Wherein, said electrode is arranged at the outside, end of said Transparent lamp tube.
According to a preferred embodiment of the utility model, in above-mentioned cold-cathode gas discharge lamp, said electrode comprises the conductive layer on the end outer surface that is coated in said Transparent lamp tube.
According to a preferred embodiment of the utility model, in above-mentioned cold-cathode gas discharge lamp, the conductive layer of said electrode is coated on the outer surface of end near the Transparent lamp tube top of said Transparent lamp tube.
A preferred embodiment according to the utility model in above-mentioned cold-cathode gas discharge lamp, also comprises: conductive contact is arranged on the said conductive layer.
According to a preferred embodiment of the utility model, in above-mentioned cold-cathode gas discharge lamp, the conductive layer of said electrode accounts for 1/10th of whole Transparent lamp tube length along the length of Transparent lamp tube length direction.
The shell of the Transparent lamp tube of the cold-cathode gas discharge lamp of the utility model be difficult for by electric current puncture, the power output of lamp is strong and have very long useful life.
Should be appreciated that the above generality of the utility model is described and following detailed description all is exemplary and illustrative, and be intended to further explanation is provided for as claimed in claim the utility model.
Description of drawings
Accompanying drawing mainly is to be used to provide the utility model is further understood.Accompanying drawing shows the embodiment of the utility model, and plays the effect of explaining the utility model principle with this specification.In the accompanying drawing:
Fig. 1 schematically shows the structural representation according to the cold-cathode gas discharge lamp of a preferred embodiment of the utility model.
Embodiment
The embodiment of the utility model will be described with reference to the drawings now in detail.
Fig. 1 schematically shows the structural representation according to the cold-cathode gas discharge lamp of a preferred embodiment of the utility model.As shown in Figure 1, a kind of cold-cathode gas discharge lamp of the utility model mainly comprises: electrode 1, Transparent lamp tube 2, phosphor powder layer 3 and gas 4.
As shown in the figure, Transparent lamp tube 2 is an elongated shape.Phosphor powder layer 3 is coated on the inwall of said Transparent lamp tube 2.Particularly, electrode 1 is arranged at the outside, end of said Transparent lamp tube 2.
According to a preferred embodiment of the utility model, in above-mentioned cold-cathode gas discharge lamp, said electrode 1 comprises the conductive layer on the end outer surface that is coated in said Transparent lamp tube 2.Particularly, the conductive layer of said electrode 1 is coated on the outer surface of end near the Transparent lamp tube top of said Transparent lamp tube 2.In the present embodiment, the conductive layer of electrode 1 is coated in the Transparent lamp tube end and comprises on the outer surface at fluorescent tube top, that is, whole lamp tube end all is coated with the conductive layer of having expired external electrode.But applying on the inwall of quartz glass lamp vessel of this conductive layer at the lamp tube end outer surface is not apply fluorescent material.The conductive layer of electrode 1 for example accounts for 10% to 15% of whole fluorescent tube length along the length on the fluorescent tube length direction.
Preferably, said conductive layer comprises the SnO layer and the conducting metal slurry that is coated on this SnO layer, for example conductive silver paste that is coated on the said lamp tube end outer surface.Compare with the fluorescent tube that simple glass is made; The quartz glass that this cold-cathode fluorescence lamp has applied fluorescent material more is difficult for seeing through ultraviolet ray; So ultraviolet ray can not come out from the fluorescent tube internal leakage basically, thereby avoided fluorescent tube the infringement of object on every side to be installed to the injury of human body and to fluorescent tube.
In addition, according to a preferred embodiment of the utility model, above-mentioned cold-cathode gas discharge lamp comprises that also one is arranged at the conductive contact on the said conductive layer.
On the other hand, the conductive layer of said electrode 1 preferably accounts for 1/10th of whole Transparent lamp tube 2 length along the length of the length direction of Transparent lamp tube 2.
To sum up,,, greatly reduce the production cost and the manufacture difficulty of Transparent lamp tube, reduced the many quality problems that cause because of internal electrode because Transparent lamp tube inside is not provided with electrode according to the cold-cathode gas discharge lamp of the utility model.More owing to adopted simple substance, uniform quartz glass as fluorescent tube, electrolyte is identical everywhere on surface of the light tube, and intraductal electric current is even, and fluorescent tube is difficult for being punctured by electric current, and working life can reach more than 20000 hours.And external electrode adopts long electrode, thereby has increased operating current, when as illuminating lamp, the output brightness of lamp is improved greatly; When as ultra-violet lamp, can strengthen the effect of sterilization and sterilization etc. in fields such as medical treatment and industry.
Those skilled in the art can be obvious, can carry out various modifications and modification to the above-mentioned exemplary embodiment of the utility model and do not depart from the spirit and the scope of the utility model.Therefore, be intended to make the utility model to cover modification and the modification that drops in appended claims and the come scope thereof to the utility model.
Claims (5)
1. cold-cathode gas discharge lamp comprises:
Electrode;
Transparent lamp tube, said Transparent lamp tube are elongated shape; And
Phosphor powder layer is coated the inwall of said Transparent lamp tube;
Wherein, said electrode is arranged at the outside, end of said Transparent lamp tube.
2. cold-cathode gas discharge lamp as claimed in claim 1 is characterized in that, said electrode comprises the conductive layer on the end outer surface that is coated in said Transparent lamp tube.
3. cold-cathode gas discharge lamp as claimed in claim 1 is characterized in that, the conductive layer of said electrode is coated on the outer surface of end near the Transparent lamp tube top of said Transparent lamp tube.
4. cold-cathode gas discharge lamp as claimed in claim 2 is characterized in that, also comprises:
Conductive contact is arranged on the said conductive layer.
5. cold-cathode gas discharge lamp as claimed in claim 2 is characterized in that, the conductive layer of said electrode accounts for 1/10th of whole Transparent lamp tube length along the length of Transparent lamp tube length direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220102827XU CN202564172U (en) | 2012-03-19 | 2012-03-19 | Cold cathode gas discharge lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220102827XU CN202564172U (en) | 2012-03-19 | 2012-03-19 | Cold cathode gas discharge lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202564172U true CN202564172U (en) | 2012-11-28 |
Family
ID=47213800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220102827XU Expired - Fee Related CN202564172U (en) | 2012-03-19 | 2012-03-19 | Cold cathode gas discharge lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202564172U (en) |
-
2012
- 2012-03-19 CN CN201220102827XU patent/CN202564172U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |
Granted publication date: 20121128 Termination date: 20130319 |