Integrated high-brightness LED light-emitting unit and making method thereof

Abstract

The invention provides an integrated high-brightness LED light-emitting unit comprising a substrate, an LED chip, a rectifier circuit, and a fluorescent coating. The rectifier circuit includes rectifier diode naked crystals and silver layer lines arranged on the substrate. The LED chip, the substrate and the rectifier circuit are packaged in the fluorescent coating as a whole. The rectifier circuit needed by an LED lamp is packaged in the form of naked crystals together with the LED chip and the substrate, and the problem that an LED lamp has a large size because of an external rectifier circuit is solved. A current stabilizer tube is added and packaged together with other components, so that the current in the circuit is relatively constant, and an LED lamp can emit light stably. Electrodes are fixed by high-temperature glue, and will not be loosened in the sealing process of an LED lamp.

Description

technical field [0001] The invention relates to the technical field of LEDs, in particular to an integrated high-brightness LED light-emitting unit and a manufacturing method thereof. Background technique [0002] The luminous efficiency of LED lamps mainly depends on its light-emitting unit, especially high-power LED lamps use LED lamp beads, and use SMT technology to fix the LED lamp beads on the aluminum substrate and ceramic board with circuit by using solder paste, and then pass the circuit and The driving power supply is connected, and the alternating current is converted into direct current by the driving power supply to light up the LED lamp bead, and then made into an LED light bulb. , the solder joints are easy to fall off, especially the electrodes are easy to loose and cause quality problems. In addition, when the LED emits light, the LED chip will generate a large amount of heat. At present, the heat generated by the LED is mainly dissipated through heat conduc...

AI Technical Summary

Problems solved by technology

[0002] The luminous efficiency of LED lamps mainly depends on its light-emitting unit, especially high-power LED lamps use LED lamp beads, and use SMT technology to fix the LED lamp beads on the aluminum substrate and ceramic board with circuit by using solder paste, and then pass the circuit and The driving power supply is connected, and the alternating current is converted into direct current by the driving power supply to light up the LED lamp bead, and then made into an LED light bulb. , the solder joints are easy to fall off, especially the electrodes are easy to loose and cause quality problems

In addition, when the LED emits light, the LED chip will generate a large amount of heat. At present, the heat generated by the LED is mainly dissipated through heat conduction, but this heat cannot be completely eliminated in a timely and effective manner. The heat generated by the LED chip continues to accumulate, and the performance of the LED chip decreases. As the temperature rises, the light output weakens. After the temperature rises, the internal resistance of the LED increases, the heat generated further increases, and the light output is further weakened, resulting in a vicious circle

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