LED light source module

Abstract

The invention discloses an LED light source module which comprises a substrate, a fluorescent powder layer, a lens module and an LED light emitting chip arranged on the substrate. The lens module comprises a main body, a frame and a lens unit, wherein, the edge of the main body stretches towards one side to form the frame, and the main body partially protrudes to form the lens unit; the substrate is covered at the outer side of the frame to form an enclosed box body with the lens module; the LED light emitting chip is arranged in the box body; and the fluorescent powder layer is arranged on the inner surface of the main body. By adopting the LED light source module of the technical scheme of the invention, the substrate and the lens module form the enclosed box body and the fluorescent powder layer is coated on the inner surface of the lens module so that the fluorescent powder layer is far away from the LED light emitting chip, thus being beneficial to lowering the temperature of the fluorescent powder layer, improving the excitation efficiency and the service life of fluorescent powder in the fluorescent powder layer, and increasing the light extraction ratio; and meanwhile by adopting an inwards concave hollow structure of the lens module, the fluorescent powder can be directly dripped on the inner surface of the lens module to form the fluorescent powder layer, so a complicated powder dispersing process is not required, thus achieving simple operation.

Description

technical field [0001] The invention relates to the technical field of LED lighting, in particular to an LED light source module. Background technique [0002] With the advent of blue LEDs, LEDs can be mixed with white light, which can be used as a lighting source. In recent years, LED lighting technology has developed very rapidly, and various LED light source modules have also emerged continuously, and in the latest technology, phosphor layers are generally used to stimulate yellow light. However, the structure of the existing LED light source module is generally more complicated, and its phosphor layer is generally exposed in the air, so the attenuation of the phosphor is faster, the life of the LED light-emitting module is shorter, and the light extraction efficiency is lower; Although the phosphor powder of a few existing LED light source modules is not exposed to the air, it is usually very close to the LED light-emitting chip, causing the temperature of the phosph...

AI Technical Summary

Problems solved by technology

However, the structure of the existing LED light source module is generally more complicated, and its phosphor layer is generally exposed in the air, so the attenuation of the phosphor is faster, the life of the LED light-emitting module is shorter, and the light extraction efficiency is lower; Although the phosphor powder of a few existing LED light source modules is not exposed to the air, it is usually very close to the LED light-emitting chip, causing the temperature of the phosphor powder to be too high, thereby affecting the excitation efficiency and life of the phosphor powder

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