CN112786432A - External electrode UV lamp tube with transparent electrode - Google Patents
External electrode UV lamp tube with transparent electrode Download PDFInfo
- Publication number
- CN112786432A CN112786432A CN202110208598.3A CN202110208598A CN112786432A CN 112786432 A CN112786432 A CN 112786432A CN 202110208598 A CN202110208598 A CN 202110208598A CN 112786432 A CN112786432 A CN 112786432A
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- CN
- China
- Prior art keywords
- lamp tube
- transparent
- conductive
- external electrode
- electrode
- Prior art date
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- Pending
Links
- 238000000576 coating method Methods 0.000 claims abstract description 29
- 239000011248 coating agent Substances 0.000 claims abstract description 18
- 239000010453 quartz Substances 0.000 claims description 18
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 18
- 239000007789 gas Substances 0.000 claims description 15
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 8
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 7
- 229910052786 argon Inorganic materials 0.000 claims description 4
- 239000001307 helium Substances 0.000 claims description 4
- 229910052734 helium Inorganic materials 0.000 claims description 4
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 4
- 239000011261 inert gas Substances 0.000 claims description 4
- 229910052754 neon Inorganic materials 0.000 claims description 4
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 claims description 4
- 229920001609 Poly(3,4-ethylenedioxythiophene) Polymers 0.000 claims description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 3
- 238000002834 transmittance Methods 0.000 claims description 3
- 239000011247 coating layer Substances 0.000 claims 1
- 229920001940 conductive polymer Polymers 0.000 claims 1
- 230000005855 radiation Effects 0.000 abstract description 4
- 230000005284 excitation Effects 0.000 abstract 1
- 238000005457 optimization Methods 0.000 description 5
- 238000004659 sterilization and disinfection Methods 0.000 description 5
- 230000002070 germicidal effect Effects 0.000 description 3
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- -1 oxygen ions Chemical class 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/30—Vessels; Containers
- H01J61/35—Vessels; Containers provided with coatings on the walls thereof; Selection of materials for the coatings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/04—Electrodes; Screens; Shields
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
- H01J61/18—Selection of substances for gas fillings; Specified operating pressure or temperature having a metallic vapour as the principal constituent
- H01J61/20—Selection of substances for gas fillings; Specified operating pressure or temperature having a metallic vapour as the principal constituent mercury vapour
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/30—Vessels; Containers
- H01J61/302—Vessels; Containers characterised by the material of the vessel
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/02—Manufacture of electrodes or electrode systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
- H01J9/245—Manufacture or joining of vessels, leading-in conductors or bases specially adapted for gas discharge tubes or lamps
- H01J9/247—Manufacture or joining of vessels, leading-in conductors or bases specially adapted for gas discharge tubes or lamps specially adapted for gas-discharge lamps
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
The invention discloses an external electrode UV lamp tube with a transparent electrode, which comprises a lamp tube, conductive gas, a conductive coating and a transparent external electrode, wherein the transparent external electrode is arranged on the lamp tube; the lamp tube is filled with conductive gas, the inner walls of the two ends of the lamp tube are coated with conductive coatings, the inner walls of the two ends of the lamp tube are completely covered by the conductive coatings, and the transparent outer electrodes are adhered to the outer surfaces of the two ends of the lamp tube; the length of the transparent external electrode is consistent with that of the conductive coating and completely covers the outer surfaces of the two ends of the lamp tube. The invention adopts the transparent outer electrode, the light-emitting area is large, and the light-emitting efficiency is high; the inner walls of two ends of the lamp tube are coated with transparent conductive coatings, the impedance between the two electrodes is low, the excitation voltage of the lamp tube is low, and the ultraviolet radiation intensity is high.
Description
Technical Field
The invention relates to the technical field of light source manufacturing, in particular to an external electrode UV lamp tube with a transparent electrode.
Background
The ultraviolet ray disinfection and sterilization has wide application range, and hospitals, schools, nursery houses, cinemas, buses, offices, families and the like can purify air, eliminate musty smell, generate a certain amount of negative oxygen ions in addition to secondary use, and the room sterilized by the ultraviolet ray has particularly fresh air. In public places, some germs can be prevented from being transmitted through air or transmitted through the surface of an object through ultraviolet disinfection. The long-life ultraviolet germicidal lamp has great significance in the application of water disinfection and environmental protection engineering, water disinfection equipment such as a pure water system generally runs in 24 hours, the service life and the reliability of the ultraviolet germicidal lamp are high in requirement, and if the service life of a lamp tube is short, the cost for replacing the lamp tube is high, and the lamp tube is inconvenient.
According to the research and analysis of the current situation of the Chinese germicidal lamp industry and the prediction report of the market prospect, along with the change of the market, the requirements of customers on products are improved, various ultraviolet lamp manufacturers develop towards long-life lamps, and cold cathode ultraviolet lamps have the advantages of small size, high brightness, long service life and the like and can gradually replace hot cathode ultraviolet lamps.
The existing external electrode UV lamp tube generally adopts graphite, silver adhesive and the like as conductive materials, the conductive materials are coated at two ends of the lamp tube, when the lamp tube is lightened, ultraviolet rays cannot penetrate through the lamp tube because the two ends are shielded by the electrodes, and the effective light-emitting area of the lamp tube is small. In addition, the UV lamp tube is only provided with the conductive coating on the surface of the lamp tube, an electric field is conducted into the tube through the lamp tube, and because the conductivity of quartz is low, high voltage is applied between two electrodes to excite gas in the tube, so that the corresponding driving circuit has high cost; meanwhile, the impedance between the two electrodes of the lamp tube is large, the current of the lamp tube is small, and the ultraviolet radiation intensity is low. The problems of high driving voltage, small light-emitting area, low light-emitting efficiency, low radiation intensity and the like exist in the prior art.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides the external electrode UV lamp tube with the transparent electrode, and the light-emitting efficiency of the lamp tube is high.
The invention adopts the following technical scheme for solving the technical problems:
the invention provides an external electrode UV lamp tube with a transparent electrode, which comprises a lamp tube, conductive gas, a conductive coating and a transparent external electrode; the lamp tube is filled with conductive gas, the inner walls of the two ends of the lamp tube are coated with conductive coatings, the inner walls of the two ends of the lamp tube are completely covered with the conductive coatings, and the transparent outer electrodes are adhered to the outer surfaces of the two ends of the lamp tube.
As a further optimization scheme of the external electrode UV lamp tube with the transparent electrode, the length of the transparent external electrode is consistent with that of the conductive coating and completely covers the outer surfaces of two ends of the lamp tube.
As a further optimization scheme of the external electrode UV lamp tube with the transparent electrode, the conductive coating is a transparent conductive coating.
As a further optimized scheme of the external electrode UV lamp tube with the transparent electrode, the lamp tube is a quartz tube.
As a further optimization scheme of the external electrode UV lamp tube with the transparent electrode, the quartz tube is a low-hydroxyl quartz tube, the hydroxyl content is < =50ppm, and the ultraviolet transmittance is > = 90%.
In a further preferred embodiment of the present invention, the conductive gas comprises one or more inert gases selected from helium, neon and argon and mercury vapor.
As a further optimization scheme of the external electrode UV lamp tube with the transparent electrode, the gas pressure of mercury vapor is 1.3-13 Pa.
As a further optimized scheme of the external electrode UV lamp tube with the transparent electrode, the conductive coating material is polyethylene dioxythiophene, and is a transparent conductive high polymer.
As a further optimization scheme of the external electrode UV lamp tube with the transparent electrode, the transparent external electrode is an indium tin oxide transparent conductive film.
Compared with the prior art, the invention adopting the technical scheme has the following technical effects:
(1) the invention adopts the transparent outer electrode, the light-emitting area is large, and the light-emitting efficiency is high;
(2) the quartz tube has transparent conducting coating on the inner walls of two ends, low impedance between two electrodes, low exciting voltage of the lamp tube and high ultraviolet radiation intensity.
Drawings
FIG. 1 is a schematic of the present invention;
description of reference numerals: 1-quartz tube, 2-transparent outer electrode, 3-conductive coating and 4-conductive gas.
Detailed Description
The technical scheme of the invention is further explained in detail by combining the attached drawings:
as shown in fig. 1, the present embodiment provides an external electrode UV lamp having a transparent electrode, which includes a quartz tube 1, a transparent external electrode 2, a conductive coating 3, a conductive gas 4; the lamp tube is filled with conductive gas, the inner walls of the two ends of the lamp tube are coated with conductive coatings, and the conductive coatings completely cover the inner walls of the two ends of the lamp tube; the transparent outer electrodes are adhered to the outer surfaces of the two ends of the lamp tube, the length of the transparent outer electrodes is consistent with that of the conductive coating and completely covers the outer surfaces of the two ends of the lamp tube, and the length can be 20 mm.
The quartz tube is a low-hydroxyl quartz tube, the hydroxyl content is less than =50ppm, and the ultraviolet transmittance is less than 90%;
the conductive gas comprises one or more inert gases of helium, neon and argon and low-pressure mercury vapor; the pressure of the mercury vapor is 1.3-13 Pa.
The conductive coating material is polyethylene dioxythiophene, which is a transparent conductive high molecular polymer;
the transparent outer electrode is an indium tin oxide transparent conductive film.
The embodiment provides a method for packaging an external electrode UV lamp tube with a transparent electrode, which specifically comprises the following steps:
the method comprises the following steps: cutting the quartz tube with openings at two ends into proper lengths and cleaning;
step two: manufacturing transparent conductive coatings with a certain length at two ends of the inner wall of the quartz tube by a chemical method, wherein the conductive coatings completely cover the inner wall of the lamp tube;
step three: closing the first end of the quartz tube, exhausting gas from the second end and filling inert gas containing helium, neon and argon and low-pressure mercury vapor;
step four: closing the second end of the quartz tube filled with the mixed gas;
step five: after the quartz tube is cooled, indium tin oxide transparent conductive films are pasted at two ends of the outer surface of the quartz tube, the length of each conductive film is consistent with that of the inner wall conductive coating, and the conductive films completely cover the outer surface of the lamp tube;
step six: and (5) carrying out impedance test on the lamp tube with the conductive film adhered, and reworking unqualified products.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (9)
1. An external electrode UV lamp tube with a transparent electrode is characterized by comprising a lamp tube, conductive gas, a conductive coating and a transparent external electrode; the lamp tube is filled with conductive gas, the inner walls of the two ends of the lamp tube are coated with conductive coatings, the inner walls of the two ends of the lamp tube are completely covered with the conductive coatings, and the transparent outer electrodes are adhered to the outer surfaces of the two ends of the lamp tube.
2. The UV lamp of claim 1, wherein the transparent external electrode has a length corresponding to the length of the conductive coating layer and completely covers the outer surfaces of both ends of the lamp tube.
3. The UV lamp tube according to claim 1, wherein the conductive coating is a transparent conductive coating.
4. The UV lamp tube according to claim 1, wherein the lamp tube is a quartz tube.
5. The UV lamp tube according to claim 4, wherein the quartz tube is a low-hydroxyl quartz tube, and has a hydroxyl group content of < =50ppm and a UV transmittance of > = 90%.
6. The external electrode UV lamp tube according to claim 1, wherein said conductive gas comprises mercury vapor and one or more inert gases selected from the group consisting of helium, neon, and argon.
7. The UV lamp tube according to claim 6, wherein the mercury vapor has a gas pressure of 1.3-13 Pa.
8. The UV lamp tube as claimed in claim 1, wherein the conductive coating is polyethylene dioxythiophene, which is a transparent conductive polymer.
9. The UV lamp tube as claimed in claim 1, wherein the transparent outer electrode is an ITO transparent conductive film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110208598.3A CN112786432A (en) | 2021-02-25 | 2021-02-25 | External electrode UV lamp tube with transparent electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110208598.3A CN112786432A (en) | 2021-02-25 | 2021-02-25 | External electrode UV lamp tube with transparent electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112786432A true CN112786432A (en) | 2021-05-11 |
Family
ID=75761855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110208598.3A Pending CN112786432A (en) | 2021-02-25 | 2021-02-25 | External electrode UV lamp tube with transparent electrode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112786432A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113456849A (en) * | 2021-06-30 | 2021-10-01 | 佛山市顺德区诚芯环境科技有限公司 | Pulse xenon ultraviolet lamp tube, and sterilization device and sterilization method for closed space |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1326216A (en) * | 2000-05-29 | 2001-12-12 | 葛世潮 | Cold-cathode gas discharge device without metallic electrode |
| CN1434476A (en) * | 2003-02-27 | 2003-08-06 | 上海交通大学 | Fluorescent lamp with reansparent electric conductive protective coating and lamp holder thereof |
| KR20060040865A (en) * | 2004-11-05 | 2006-05-11 | 삼성전자주식회사 | Lamp and display apparatus having the same |
| CN214797326U (en) * | 2021-02-25 | 2021-11-19 | 江苏稳润光电科技有限公司 | External electrode UV lamp tube with transparent electrode |
-
2021
- 2021-02-25 CN CN202110208598.3A patent/CN112786432A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1326216A (en) * | 2000-05-29 | 2001-12-12 | 葛世潮 | Cold-cathode gas discharge device without metallic electrode |
| CN1434476A (en) * | 2003-02-27 | 2003-08-06 | 上海交通大学 | Fluorescent lamp with reansparent electric conductive protective coating and lamp holder thereof |
| KR20060040865A (en) * | 2004-11-05 | 2006-05-11 | 삼성전자주식회사 | Lamp and display apparatus having the same |
| CN214797326U (en) * | 2021-02-25 | 2021-11-19 | 江苏稳润光电科技有限公司 | External electrode UV lamp tube with transparent electrode |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113456849A (en) * | 2021-06-30 | 2021-10-01 | 佛山市顺德区诚芯环境科技有限公司 | Pulse xenon ultraviolet lamp tube, and sterilization device and sterilization method for closed space |
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