Technology for coating LED lamp filaments with fluorescent powder

Abstract

The invention aims to provide a technology for coating LED lamp filaments with fluorescent powder. According to the technology for coating the LED lamp filaments with the fluorescent powder, a lamp filament coating method comprises the steps that (1) the fluorescent powder is prepared, wherein the fluorescent powder comprises, by weight, 20-25 parts of AB powder, 5-18 parts of YAG fluorescent powder and 8-10 parts of a diffusant; (2) the lamp filaments are heated, the filaments are pre-heated through a filament tube oven before the filaments are heated, then standing is carried out for 10 minutes, and further the lamp filaments are heated to 150-180 DEG C; and (3) the lamp filaments are brushed and coated with the fluorescent powder, powder slurry reaches the overflow surface of a coating barrel, flows out of the overflow surface and flow back to a stirring barrel to form circulation, and coating is started. The technology for coating the LED lamp filaments with the fluorescent powder has the advantages that the single-coating thickness is decreased, the adhesion degree of the fluorescent powder is improved, the service life of the lamp filaments is prolonged, meanwhile, a certain proportion of antioxidants are added into the fluorescent powder, and therefore the phenomenon that the lamp filaments get rusty can be reduced, the resistance of connection points can be reduced, the power consumption of an LED can be reduced, and the damage probability can be reduced.

Description

technical field [0001] The present invention relates to the field of LED lamp processing technology, in particular to the improvement of LED lamp filament processing, and in particular to a fluorescent powder coating process for LED lamp filament. Background technique [0002] With the improvement of living standards, people have relatively high requirements for daily lighting. They also need to use more LED lights for lighting. Therefore, they have higher requirements for LED filaments, especially when filaments are used for long-term lighting. When it is used, a large amount of heat will be generated, causing the phosphor coating on the LED filament to break and separate, causing the filament to not work normally, reducing the light efficiency of the LED lamp, and affecting normal use. Transfer to the lower temperature lampshade, condense into water droplets to anti-corrode and oxidize the filament connection port, which will cause corrosion of the filament connection port...

AI Technical Summary

Problems solved by technology

[0002] With the improvement of living standards, people have relatively high requirements for daily lighting. LED lights are generally used for lighting, so the requirements for LED filaments are relatively high, especially for long-term lighting. , will generate a lot of heat, causing the phosphor coating on the LED filament to break and separate, causing the filament to not work normally, reducing the light efficiency of the LED lamp, and affecting normal use. Transfer to the lower temperature lampshade, condense into water droplets to anti-corrode and oxidize the filament connection port, causing corrosion of the filament connection port, reducing the quality of light, increasing the resistance of the connection point, increasing the power consumption of the LED, and increasing the probability of damage , reducing service life