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Cold-starting low-voltage fluorescent lamp

A fluorescent lamp and cold start technology, applied in discharge lamps, gas discharge lamps, electrical components, etc., can solve problems such as increased sputtering of electronic powder, decreased switching times and life, and decreased filament temperature, so as to reduce production costs and improve competition. effect of ability

Inactive Publication Date: 2009-01-07
HENGDIAN GRP TOSPO LIGHTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the market has put forward the requirements of long life, high luminous efficiency and low energy consumption for fluorescent lamps. In order to improve the efficiency of fluorescent lamps, reducing the power loss of the filament auxiliary heating current on the cathode is one of the feasible methods; when the filament is in a short circuit state, due to There is no filament auxiliary heating current, the temperature of the filament has dropped significantly, the sputtering of electronic powder has increased, the switching times and life have been greatly reduced, and the switching times have dropped from 6000-10000 times in the cathode preheated state to 3000-6000 times

Method used

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  • Cold-starting low-voltage fluorescent lamp

Examples

Experimental program
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Effect test

Embodiment 1

[0020] The fluorescent tube of the present invention is improved on the prior art. First, the rare earth oxide slurry is prepared, and 10 grams of yttrium oxide, 20 grams of zirconia, 70 grams of aluminum oxide and deionized water are mixed into 1000 ml of slurry, and the filament First apply electronic powder on the main part in the middle, and then apply rare earth oxide slurry on the wire feet at both ends, then take the baked powder tube and the filament dipped in electronic powder, and seal and discharge according to the normal process. Gas and post-treatment, made of 13W energy-saving lamps. The average initial luminous flux is 960Lm, the average switching times is 12,000 times, and the service life reaches 15,000 hours.

Embodiment 2

[0022] First prepare the rare earth oxide slurry, take 50 grams of yttrium oxide, 30 grams of zirconia, 20 grams of aluminum oxide and deionized water to prepare a 1000ml slurry, first coat the filament with electronic powder on the main part in the middle, and then The end wire foot part is coated with rare earth oxide powder, and then the baked powder tube and the filament coated with electronic powder are taken, and the sealing, exhaust and post-treatment are carried out according to the normal process to make a 23W energy-saving lamp tube. The average initial luminous flux is 1650Lm, the average switching times is 13,000 times, and the service life reaches 15,000 hours.

Embodiment 3

[0024] First prepare the rare earth oxide slurry, take 20 grams of europium oxide, 40 grams of zirconia, 40 grams of aluminum oxide and deionized water to prepare a 1000ml slurry, first coat the filament with electronic powder on the main part in the middle, and then The end wire foot part is coated with rare earth oxide powder, and then the baked powder tube and the filament coated with electronic powder are taken, and the sealing, exhaust and post-treatment are carried out according to the normal process to make a 42W energy-saving lamp tube. The average initial luminous flux is 2900Lm, the average switching times is 12000 times, and the service life reaches 15000 hours.

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Abstract

The invention discloses a cold boot low-pressure fluorescent lamp which comprises a tube body and a core column which is provided with a filament, the surface of the filament is coated with a metal oxide protective layer and a unit triplet carbonate layer. Compared with a warm boot fluorescent lamp with the same service life and switching times, by adopting a thermistance, the cold boot low-pressure fluorescent lamp of the invention reduces the production cost of the whole lamp and improves the competitiveness of the products; as no filament current exists in the filament of the invention, the amount of evaporation of electronic powder is reduced under the condition that the switching times are increased, thus being beneficial to the service life of burning point of the fluorescent lamp. The lighting tube of the cold boot low-pressure fluorescent lamp can be applicable to any occasion, and especially suitable for the occasion that the fluorescent lamp is turned on frequently.

Description

technical field [0001] The invention relates to a manufacturing process of a compact fluorescent lamp, in particular to the switching times and ignition life of the lamp in a cold start state. Background technique [0002] Compact fluorescent lamps are usually bent into a double helix shape by bending a glass tube of ￠7-12mm. The end is sealed by a glass stem. The lamp is filled with inert gases Ar and Hg. The inner wall of the lamp tube is coated with three primary color phosphors. A three-helix filament is assembled on the metal guide wire of the column, and the filament is coated with ternary carbonate. The life of compact fluorescent lamps has two definitions like other electric light sources: one is the time when the luminous flux drops to a certain percentage of the initial luminous flux, which is called the effective life; the other is the time when the lamp cannot work, which is called the full life. The full life of energy-saving lamps mainly depends on the life of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J61/067
Inventor 邱福元费林坤
Owner HENGDIAN GRP TOSPO LIGHTING
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