Quick heat-radiation light emitting diode (LED) garden lamp

Abstract

The invention relates to the field of an illumination lamp, in particular to a quick heat-radiation light emitting diode (LED) garden lamp having a good heat radiation effect, which aims to solve the heat radiation difficulty of the present LED lamp, and has fast heat radiation speed and large amount of heat radiation. The invention adopts a technical scheme that: the quick heat radiation LED garden lamp consists of a lamp holder, a heat radiator and a lamp adapter, which are sequentially connected with each other from top to bottom, wherein an axial through hole is arranged in the middle of the heat radiator, the periphery of the through hole is provided with heat radiation sheets, the upper end of a heat conducting bar is embedded inside the through hole, the lower end surface of the heat conducting bar is sequentially provided with a binding layer, an insulation layer substrate, a copper-clad layer and an insulation layer, and LED lamp beads are welded on the heat conducting bar through a tin soldering layer. 95 percent of the heat is radiated from the inside of each lamp bead through a central point of the LED lamp beads, and good heat conduction performance of the heat conducting bar and a mechanical-connection-free interference fit way between the heat conducting bar and the heat radiator are utilized to quickly transfer the heat received by the heat conducting bar to the heat radiator.

Description

technical field [0001] The invention relates to the field of lighting fixtures, in particular to a fast heat dissipation LED garden light with good heat dissipation effect. Background technique [0002] Light-emitting diodes (LEDs) have the advantages of low energy consumption, power saving, long life, and durability. However, due to the limitation of the current technical level, only a small part of the power dissipated by LED lamps is converted into light energy, and most of it is converted into heat energy. Studies have shown that an increase in temperature leads to a severe decrease in luminous efficiency. The luminous efficiency of LEDs will decrease with the time and frequency of use, and an excessively high LED junction temperature will accelerate the decay of LED luminous efficiency. The definition of LED service life is that when the LED luminous efficiency is lower than 70% of the original luminous efficiency, it can be regarded as the end of the LED life. There...

AI Technical Summary

Problems solved by technology

However, due to the limitation of the current technical level, only a small part of the power dissipated by LED lamps is converted into light energy, and most of it is converted into heat energy.

Increased temperature leads to severe drop in luminous efficiency, study shows

LED luminous efficiency will decrease with the time and frequency of use, and too high LED junction temperature will accelerate the decay of LED luminous efficiency

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