White light LED package radiating structure

Abstract

This invention discloses one white LED sealed dissipation structure, which comprises Two metal lead legs with one top as rack cup with blue lighting crystal and fluorescence glue layer stretching out two wires connected to two lead legs, wherein, the two racks top ends are sealed with transparent resin; the top and down sides of crystal are set with one dissipation glue layer. The invention adopts the above structure to get two dissipation glue layer in work for lead legs rapidly and then through rack to outside to make the LED light work under temperature of 65 degrees and fluorescent powder life of 40000 hours.

Description

technical field [0001] The invention relates to an LED package structure, in particular to a white light LED package conduction and heat dissipation structure. Background technique [0002] As a light source, LED has many advantages such as low energy consumption, low calorific value, and long service life, and has been more and more widely used in lighting and decorative lamps. Among them, the emergence of white LEDs has enabled the application of high-brightness LEDs to enter the market of high-efficiency lighting sources. [0003] Existing white light LEDs use blue light-emitting crystals and phosphors to cooperate and then use the principle of lenses to emit white light required by the naked eye. However, the current white LED lamps mostly use the structure of white LED arrays to provide the overall luminous brightness of the lamps. Therefore, although the calorific value of a single white LED is low, a large number of white LED devices are used in relatively sealed and...

AI Technical Summary

Problems solved by technology

However, the current white LED lamps mostly use the structure of white LED arrays to provide the overall luminous brightness of the lamps. Therefore, although the calorific value of a single white LED is low, a large number of white LED devices are used in relatively sealed and space-limited lamps. In the inner cavity, the heat generated during its work is still difficult to effectively dissipate and accumulate, which inevitably leads to the problem of large overall heat generation of the lamp

According to the current packaging technology of white light LED, once its working temperature exceeds 65°C, the phosphor powder on the white light LED illuminant will be burnt, which will affect the use effect and life of the lamp

In addition, due to the existing phosphor powder blending technology, the lifespan of white light LEDs produced and packaged on the market is very short, and the problem of attenuation or discoloration usually occurs after 600-800 hours.

At present, there is no effective method to solve the problem of conduction and heat dissipation of white light LEDs

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