LED lamp and preparation method thereof

Abstract

The invention discloses an LED lamp and a preparation method thereof. The LED comprises an LED bracket, wherein a square groove is formed in the LED bracket and is divided into an upper layer and a lower layer; a right-angle step is formed on the edges of the upper square groove and the lower square groove; glue injection holes are arranged at four corner parts of the upper square groove respectively; a cylindrical hole is formed in the bottom surface of each glue injection hole; the cylindrical holes are communicated with the corner parts of the lower square groove; three glue outlet holes are arranged at the corner parts of the lower square groove; the three glue outlet holes are communicated with the cylindrical holes; the three glue outlet holes are located at the upper, middle and lower three positions of the corner parts of the lower square groove; an epoxy resin piece is fixed on the upper square groove; and a hollow cavity of the lower square groove at the lower part of the epoxy resin piece is filled with three different package silica gel layers, which are a first package silica gel layer, a second package silica gel layer and a third package silica gel layer respectively. The LED structure can solve the problems of a white light and a yellow circle of an LED, and simultaneously can solve the problem of white light intensity attenuation of the LED.

Description

technical field [0001] The invention relates to the field of LEDs, in particular to an LED lamp and a preparation method thereof. Background technique [0002] Light-emitting diode (LED) is a semiconductor light source. Compared with other light sources such as incandescent lamps, LEDs have many advantages. LEDs usually have longer life, better stability, faster switching characteristics, and lower energy consumption. As the LED as a new generation of light source has become more and more popular in people's lives, its application has become more and more extensive. In terms of synthesizing white light, the most common way is to place a wavelength conversion material, such as yellow phosphor, on a blue-emitting LED chip. The layer of wavelength conversion material on the LED chip will absorb some of the photons emitted by the LED and convert them down. (down-convert) to visible wavelengths of light, resulting in a two-color light source with blue and yellow wavelengths of l...

AI Technical Summary

Problems solved by technology

The light mixing of white light LED is not uniform enough, and the brightness is relatively low. Most of the phosphor material is concentrated at the bottom of the bracket groove and the attachment of the LED chip. Long-term heating will cause brightness attenuation, which will affect the life of the LED.

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